Machine Generated Data
Tags
Amazon
created on 2022-09-03
Clarifai
created on 2023-10-30
no person | 99.6 | |
| ||
one | 98.3 | |
| ||
people | 94.9 | |
| ||
paper | 94.2 | |
| ||
two | 91.2 | |
| ||
business | 91.1 | |
| ||
text | 91.1 | |
| ||
war | 88.9 | |
| ||
retro | 88 | |
| ||
administration | 87.8 | |
| ||
wear | 86.4 | |
| ||
vehicle | 86.1 | |
| ||
information | 84 | |
| ||
stripe | 82.6 | |
| ||
conceptual | 81.4 | |
| ||
adult | 81.1 | |
| ||
education | 81.1 | |
| ||
travel | 80.6 | |
| ||
portrait | 79 | |
| ||
still life | 78.6 | |
|
Imagga
created on 2022-09-03
Google
created on 2022-09-03
Font | 80.8 | |
| ||
Newspaper | 74.4 | |
| ||
Publication | 73.3 | |
| ||
Rectangle | 72.8 | |
| ||
Paper product | 65.9 | |
| ||
Paper | 65.7 | |
| ||
Parallel | 63.2 | |
| ||
Document | 62.1 | |
|
Color Analysis
Feature analysis
Amazon
![](https://ids.lib.harvard.edu/ids/iiif/494886805/463,261,1567,1194/full/0/native.jpg)
Flyer | 51.3% | |
|
Categories
Imagga
text visuals | 68.5% | |
| ||
paintings art | 28.4% | |
| ||
streetview architecture | 3% | |
|
Captions
Microsoft
created on 2022-09-03
text | 96% | |
|
Text analysis
Amazon
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1281,380,154,63/full/0/native.jpg)
prooflite
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1704,378,215,56/full/0/native.jpg)
illuminators
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1281,378,639,64/full/0/native.jpg)
prooflite transparency illuminators
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1450,381,240,61/full/0/native.jpg)
transparency
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1653,717,99,21/full/0/native.jpg)
Relamping
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1578,569,303,36/full/0/native.jpg)
MAINTENANCE
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1281,442,510,117/full/0/native.jpg)
PLT-214/ALT-214
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1281,569,239,38/full/0/native.jpg)
OPERATION
![](https://ids.lib.harvard.edu/ids/iiif/494886805/675,760,31,14/full/0/native.jpg)
Plug
![](https://ids.lib.harvard.edu/ids/iiif/494886805/858,760,41,13/full/0/native.jpg)
outlet
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1701,801,31,13/full/0/native.jpg)
prior
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1626,750,26,13/full/0/native.jpg)
and
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1658,748,63,16/full/0/native.jpg)
diffusing
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1758,800,61,16/full/0/native.jpg)
cleaning.
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1359,748,69,14/full/0/native.jpg)
GENERAL
![](https://ids.lib.harvard.edu/ids/iiif/494886805/715,758,26,14/full/0/native.jpg)
line
![](https://ids.lib.harvard.edu/ids/iiif/494886805/743,795,71,16/full/0/native.jpg)
specifies
![](https://ids.lib.harvard.edu/ids/iiif/494886805/881,778,33,14/full/0/native.jpg)
back
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1557,780,36,13/full/0/native.jpg)
often
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1281,569,600,38/full/0/native.jpg)
OPERATION & MAINTENANCE
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1773,750,11,13/full/0/native.jpg)
of
![](https://ids.lib.harvard.edu/ids/iiif/494886805/805,778,39,13/full/0/native.jpg)
Label
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1487,748,68,16/full/0/native.jpg)
reflecting
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1558,748,61,16/full/0/native.jpg)
surfaces
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1505,800,78,14/full/0/native.jpg)
disconnect
![](https://ids.lib.harvard.edu/ids/iiif/494886805/648,777,85,19/full/0/native.jpg)
proper line
![](https://ids.lib.harvard.edu/ids/iiif/494886805/648,777,50,19/full/0/native.jpg)
proper
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1814,765,43,11/full/0/native.jpg)
water:
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1842,821,61,16/full/0/native.jpg)
ALT-214
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1362,778,49,16/full/0/native.jpg)
should
![](https://ids.lib.harvard.edu/ids/iiif/494886805/908,758,29,14/full/0/native.jpg)
with
![](https://ids.lib.harvard.edu/ids/iiif/494886805/750,758,31,14/full/0/native.jpg)
cord
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1356,821,28,14/full/0/native.jpg)
Two
![](https://ids.lib.harvard.edu/ids/iiif/494886805/790,758,29,14/full/0/native.jpg)
into
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1791,748,24,14/full/0/native.jpg)
the
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1661,763,48,16/full/0/native.jpg)
month
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1469,763,56,16/full/0/native.jpg)
cleaned
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1889,752,13,9/full/0/native.jpg)
or
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1366,836,28,14/full/0/native.jpg)
PLT
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1612,801,36,13/full/0/native.jpg)
input
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1738,801,13,9/full/0/native.jpg)
to
![](https://ids.lib.harvard.edu/ids/iiif/494886805/649,793,92,19/full/0/native.jpg)
illuminator
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1338,780,23,13/full/0/native.jpg)
ing
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1514,780,38,13/full/0/native.jpg)
more
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1653,823,41,13/full/0/native.jpg)
lamps
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1338,776,408,19/full/0/native.jpg)
ing should be performed more often conditions require.
![](https://ids.lib.harvard.edu/ids/iiif/494886805/820,793,96,19/full/0/native.jpg)
input-power
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1332,709,420,33/full/0/native.jpg)
MAINTENANCE - Cleaning and Relamping
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1454,748,28,14/full/0/native.jpg)
The
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1568,821,79,16/full/0/native.jpg)
fluorescent
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1547,765,34,13/full/0/native.jpg)
least
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1653,801,41,13/full/0/native.jpg)
power
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1338,836,56,14/full/0/native.jpg)
and PLT
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1698,823,24,13/full/0/native.jpg)
are
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1861,765,41,11/full/0/native.jpg)
clean-
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1744,765,34,13/full/0/native.jpg)
soap
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1443,819,63,19/full/0/native.jpg)
Macbeth
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1356,819,547,22/full/0/native.jpg)
Two 14-watt Macbeth long-life fluorescent lamps are employed in the ALT-214
![](https://ids.lib.harvard.edu/ids/iiif/494886805/853,778,19,14/full/0/native.jpg)
on
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1690,778,56,16/full/0/native.jpg)
require.
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1799,823,11,11/full/0/native.jpg)
in
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1690,836,69,16/full/0/native.jpg)
employed
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1583,765,34,13/full/0/native.jpg)
once
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1427,835,96,19/full/0/native.jpg)
illuminators;
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1336,798,74,16/full/0/native.jpg)
WARNING
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1437,776,75,19/full/0/native.jpg)
performed
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1529,766,13,9/full/0/native.jpg)
at
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1336,797,483,20/full/0/native.jpg)
WARNING Be sure to disconnect a-c input power prior to cleaning.
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1416,778,18,14/full/0/native.jpg)
be
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1612,776,76,16/full/0/native.jpg)
conditions
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1530,571,34,33/full/0/native.jpg)
&
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1620,763,39,18/full/0/native.jpg)
every
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1508,819,60,20/full/0/native.jpg)
long-life
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1399,836,28,14/full/0/native.jpg)
214
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1427,797,24,20/full/0/native.jpg)
Be
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1452,801,33,13/full/0/native.jpg)
sure
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1334,748,567,41/full/0/native.jpg)
PLT-214 A. GENERAL should be The cleaned reflecting at least surfaces once if every and diffusing month soap of and the water: clean- or
![](https://ids.lib.harvard.edu/ids/iiif/494886805/825,762,26,13/full/0/native.jpg)
a-c
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1385,819,57,20/full/0/native.jpg)
14-watt
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1399,833,504,21/full/0/native.jpg)
214 illuminators; F14T12/AVX lamps are employed in the ALT-214, and
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1520,833,97,21/full/0/native.jpg)
F14T12/AVX
![](https://ids.lib.harvard.edu/ids/iiif/494886805/649,811,91,19/full/0/native.jpg)
quirements.
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1334,762,63,16/full/0/native.jpg)
PLT-214
![](https://ids.lib.harvard.edu/ids/iiif/494886805/738,762,202,51/full/0/native.jpg)
voltage. specifies Label input-power a-c on back re- of
![](https://ids.lib.harvard.edu/ids/iiif/494886805/650,758,287,16/full/0/native.jpg)
A. Plug line cord into outlet with
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1332,709,274,33/full/0/native.jpg)
MAINTENANCE - Cleaning
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1806,833,66,21/full/0/native.jpg)
ALT-214,
![](https://ids.lib.harvard.edu/ids/iiif/494886805/738,776,58,20/full/0/native.jpg)
voltage.
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1338,750,13,9/full/0/native.jpg)
A.
![](https://ids.lib.harvard.edu/ids/iiif/494886805/918,796,23,13/full/0/native.jpg)
re-
![](https://ids.lib.harvard.edu/ids/iiif/494886805/649,841,16,16/full/0/native.jpg)
B.
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1598,781,8,8/full/0/native.jpg)
if
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1630,327,240,28/full/0/native.jpg)
MACBETH
![](https://ids.lib.harvard.edu/ids/iiif/494886805/642,330,1281,1006/full/0/native.jpg)
OPERATION
A. Plug line cord into a-c outlet with
proper line voltage. Label on back of
illuminator specifies input-power re-
quirements.
B. According to viewing requirements,
set illuminator in upright or inclined
position. A unique stand design makes
it possible to set up your viewer:
1. On a 55° angle to the plane of a flat
surface. To accomplish this, flip the
wire stand to the back position (see
figure 1A).
2. Upright
in this position, the wire
stand is folded so that it provides a
flat bottom and allows the illumina-
tor to stand easily in the upright posi-
tion (see figure 1B).
C. Turn illuminator on by depressing
red pushbutton for approximately four
seconds.
ofes
fig. 1A
fig. 1B
NOTE - With all fluorescent lamps, the emission of phosphors is constantly chang-
ing immediately after startup; this emission becomes stabilized when the lamp.
reaches heat equilibrium. Therefore, it is recommended that all illuminators em-
ploying fluorescent lamps be allowed a warm-up period of at least 15 minutes
before prints or transparencies are viewed.
D. Using toggle switch on top of illuminator select one of two illumination levels:
(1) 400 ft. lamberts; (2) 500 ft. lamberts.
E. To turn illuminator off, depress black pushbutton.
MACBETH
prooflite transparency illuminators
PLT-214/ALT-214
OPERATION & MAINTENANCE
MAINTENANCE - Cleaning and Relamping
A. GENERAL The reflecting surfaces and diffusing panel of the ALT-214 or
PLT-214 should be cleaned at least once every month with soap and water; clean-
ing should be performed more often if conditions require.
WARNING - Be sure to disconnect a-c input power prior to cleaning.
Two 14-watt Macbeth long-life fluorescent lamps are employed in the ALT-214
and PLT 214 illuminators; F14T12/AVX lamps are employed in the ALT-214, and
F14T12/50 lamps are employed in the PLT-214. Although these lamps have a
burning life of 5000 hours or more, it is advisable to relamp after 2000 or 3000
hours of burning in order to be certain that you keep within the close "standard"
tolerances. If the illuminator is used eight hours per day, five days per week,
relamping should be done once a year.
NOTE-To preserve the original quality of illumination and to assure standardiza-
tion with other Macbeth illuminators, (also for adherence to the draft USA Stand-
ard for Transparency Illumination) relamp only with Macbeth fluorescent lamps.
B. PROCEDURE - To clean or relamp the ALT-214 or PLT-214 illuminator, place
it flat on a table or bench with the viewing panel up. Loosen the two knurled
knobs on the top (near the handle). Lift the front panel until the top flange just
clears the case, and slide the front panel toward the bottom of the unit just far
enough to release the complete front panel. Remove the front panel assembly
and viewing panel; the interior of the illuminator and the fluorescent lamps are
now readily accessible. Remove fluorescent lamps in the conventional manner
and clean the interior and reflector surfaces with soap and water; replace fluores-
cent lamps if required.
REPAIR AND REPLACEMENT OF ELECTRICAL WIRING AND
COMPONENTS (BALLASTS, LAMPHOLDERS, ETC.)
Proceed as follows:
1. Loosen and remove knurled knobs on top of illuminator.
2. Loosen screws securing dark gray top cover assembly to illuminator housing.
Lift top cover assembly sufficiently to clear machine screws. Tilt cover assem-
bly towards front of illuminator while taking care not to strain and break wires
connected to components mounted on cover assembly.
3. With top cover assembly removed from illuminator housing, all wiring connec-
tions and components except lampholders are readily accessible. Each lamp-
holder is secured to side of illuminator housing by two machine screws. Repair
and replacement procedures are obvious upon inspection.
![](https://ids.lib.harvard.edu/ids/iiif/494886805/650,727,138,23/full/0/native.jpg)
OPERATION
![](https://ids.lib.harvard.edu/ids/iiif/494886805/650,760,19,18/full/0/native.jpg)
A.
![](https://ids.lib.harvard.edu/ids/iiif/494886805/675,760,36,18/full/0/native.jpg)
Plug
![](https://ids.lib.harvard.edu/ids/iiif/494886805/717,760,30,18/full/0/native.jpg)
line
![](https://ids.lib.harvard.edu/ids/iiif/494886805/752,760,34,18/full/0/native.jpg)
cord
![](https://ids.lib.harvard.edu/ids/iiif/494886805/793,760,29,18/full/0/native.jpg)
into
![](https://ids.lib.harvard.edu/ids/iiif/494886805/828,760,11,18/full/0/native.jpg)
a
![](https://ids.lib.harvard.edu/ids/iiif/494886805/837,760,7,18/full/0/native.jpg)
-
![](https://ids.lib.harvard.edu/ids/iiif/494886805/842,760,10,18/full/0/native.jpg)
c
![](https://ids.lib.harvard.edu/ids/iiif/494886805/858,760,45,18/full/0/native.jpg)
outlet
![](https://ids.lib.harvard.edu/ids/iiif/494886805/908,760,33,18/full/0/native.jpg)
with
![](https://ids.lib.harvard.edu/ids/iiif/494886805/651,778,50,20/full/0/native.jpg)
proper
![](https://ids.lib.harvard.edu/ids/iiif/494886805/740,777,56,20/full/0/native.jpg)
voltage
![](https://ids.lib.harvard.edu/ids/iiif/494886805/793,777,7,19/full/0/native.jpg)
.
![](https://ids.lib.harvard.edu/ids/iiif/494886805/807,777,41,19/full/0/native.jpg)
Label
![](https://ids.lib.harvard.edu/ids/iiif/494886805/854,777,19,19/full/0/native.jpg)
on
![](https://ids.lib.harvard.edu/ids/iiif/494886805/880,776,39,19/full/0/native.jpg)
back
![](https://ids.lib.harvard.edu/ids/iiif/494886805/922,776,20,19/full/0/native.jpg)
of
![](https://ids.lib.harvard.edu/ids/iiif/494886805/654,795,88,18/full/0/native.jpg)
illuminator
![](https://ids.lib.harvard.edu/ids/iiif/494886805/746,795,71,18/full/0/native.jpg)
specifies
![](https://ids.lib.harvard.edu/ids/iiif/494886805/823,795,42,19/full/0/native.jpg)
input
![](https://ids.lib.harvard.edu/ids/iiif/494886805/869,796,49,18/full/0/native.jpg)
power
![](https://ids.lib.harvard.edu/ids/iiif/494886805/923,796,17,18/full/0/native.jpg)
re
![](https://ids.lib.harvard.edu/ids/iiif/494886805/653,816,85,16/full/0/native.jpg)
quirements
![](https://ids.lib.harvard.edu/ids/iiif/494886805/650,844,19,19/full/0/native.jpg)
B.
![](https://ids.lib.harvard.edu/ids/iiif/494886805/674,844,78,19/full/0/native.jpg)
According
![](https://ids.lib.harvard.edu/ids/iiif/494886805/754,844,18,19/full/0/native.jpg)
to
![](https://ids.lib.harvard.edu/ids/iiif/494886805/775,844,59,19/full/0/native.jpg)
viewing
![](https://ids.lib.harvard.edu/ids/iiif/494886805/838,844,99,19/full/0/native.jpg)
requirements
![](https://ids.lib.harvard.edu/ids/iiif/494886805/933,844,9,19/full/0/native.jpg)
,
![](https://ids.lib.harvard.edu/ids/iiif/494886805/650,861,27,20/full/0/native.jpg)
set
![](https://ids.lib.harvard.edu/ids/iiif/494886805/771,861,15,20/full/0/native.jpg)
in
![](https://ids.lib.harvard.edu/ids/iiif/494886805/792,861,59,20/full/0/native.jpg)
upright
![](https://ids.lib.harvard.edu/ids/iiif/494886805/855,861,19,20/full/0/native.jpg)
or
![](https://ids.lib.harvard.edu/ids/iiif/494886805/878,861,63,20/full/0/native.jpg)
inclined
![](https://ids.lib.harvard.edu/ids/iiif/494886805/650,880,59,19/full/0/native.jpg)
position
![](https://ids.lib.harvard.edu/ids/iiif/494886805/718,880,15,19/full/0/native.jpg)
A
![](https://ids.lib.harvard.edu/ids/iiif/494886805/735,880,53,19/full/0/native.jpg)
unique
![](https://ids.lib.harvard.edu/ids/iiif/494886805/791,880,43,19/full/0/native.jpg)
stand
![](https://ids.lib.harvard.edu/ids/iiif/494886805/838,880,49,19/full/0/native.jpg)
design
![](https://ids.lib.harvard.edu/ids/iiif/494886805/892,880,50,19/full/0/native.jpg)
makes
![](https://ids.lib.harvard.edu/ids/iiif/494886805/650,898,14,18/full/0/native.jpg)
it
![](https://ids.lib.harvard.edu/ids/iiif/494886805/666,898,63,18/full/0/native.jpg)
possible
![](https://ids.lib.harvard.edu/ids/iiif/494886805/776,898,22,18/full/0/native.jpg)
up
![](https://ids.lib.harvard.edu/ids/iiif/494886805/800,898,35,18/full/0/native.jpg)
your
![](https://ids.lib.harvard.edu/ids/iiif/494886805/836,898,51,18/full/0/native.jpg)
viewer
![](https://ids.lib.harvard.edu/ids/iiif/494886805/884,898,9,18/full/0/native.jpg)
:
![](https://ids.lib.harvard.edu/ids/iiif/494886805/650,923,18,18/full/0/native.jpg)
1.
![](https://ids.lib.harvard.edu/ids/iiif/494886805/669,923,24,18/full/0/native.jpg)
On
![](https://ids.lib.harvard.edu/ids/iiif/494886805/709,923,23,18/full/0/native.jpg)
55
![](https://ids.lib.harvard.edu/ids/iiif/494886805/731,923,10,18/full/0/native.jpg)
°
![](https://ids.lib.harvard.edu/ids/iiif/494886805/742,923,43,18/full/0/native.jpg)
angle
![](https://ids.lib.harvard.edu/ids/iiif/494886805/806,923,27,18/full/0/native.jpg)
the
![](https://ids.lib.harvard.edu/ids/iiif/494886805/836,923,42,18/full/0/native.jpg)
plane
![](https://ids.lib.harvard.edu/ids/iiif/494886805/913,923,28,18/full/0/native.jpg)
flat
![](https://ids.lib.harvard.edu/ids/iiif/494886805/669,940,57,18/full/0/native.jpg)
surface
![](https://ids.lib.harvard.edu/ids/iiif/494886805/733,940,23,18/full/0/native.jpg)
To
![](https://ids.lib.harvard.edu/ids/iiif/494886805/757,940,84,18/full/0/native.jpg)
accomplish
![](https://ids.lib.harvard.edu/ids/iiif/494886805/846,941,30,18/full/0/native.jpg)
this
![](https://ids.lib.harvard.edu/ids/iiif/494886805/884,941,28,18/full/0/native.jpg)
flip
![](https://ids.lib.harvard.edu/ids/iiif/494886805/668,959,34,18/full/0/native.jpg)
wire
![](https://ids.lib.harvard.edu/ids/iiif/494886805/908,959,10,18/full/0/native.jpg)
(
![](https://ids.lib.harvard.edu/ids/iiif/494886805/914,959,27,19/full/0/native.jpg)
see
![](https://ids.lib.harvard.edu/ids/iiif/494886805/668,976,45,20/full/0/native.jpg)
figure
![](https://ids.lib.harvard.edu/ids/iiif/494886805/719,976,22,19/full/0/native.jpg)
1A
![](https://ids.lib.harvard.edu/ids/iiif/494886805/737,976,10,18/full/0/native.jpg)
)
![](https://ids.lib.harvard.edu/ids/iiif/494886805/648,1001,20,18/full/0/native.jpg)
2.
![](https://ids.lib.harvard.edu/ids/iiif/494886805/669,1001,60,18/full/0/native.jpg)
Upright
![](https://ids.lib.harvard.edu/ids/iiif/494886805/715,1018,16,17/full/0/native.jpg)
is
![](https://ids.lib.harvard.edu/ids/iiif/494886805/733,1018,48,17/full/0/native.jpg)
folded
![](https://ids.lib.harvard.edu/ids/iiif/494886805/786,1018,19,17/full/0/native.jpg)
so
![](https://ids.lib.harvard.edu/ids/iiif/494886805/808,1018,32,17/full/0/native.jpg)
that
![](https://ids.lib.harvard.edu/ids/iiif/494886805/861,1018,65,18/full/0/native.jpg)
provides
![](https://ids.lib.harvard.edu/ids/iiif/494886805/700,1037,51,17/full/0/native.jpg)
bottom
![](https://ids.lib.harvard.edu/ids/iiif/494886805/757,1037,29,17/full/0/native.jpg)
and
![](https://ids.lib.harvard.edu/ids/iiif/494886805/791,1037,48,18/full/0/native.jpg)
allows
![](https://ids.lib.harvard.edu/ids/iiif/494886805/873,1038,63,17/full/0/native.jpg)
illumina
![](https://ids.lib.harvard.edu/ids/iiif/494886805/667,1056,26,18/full/0/native.jpg)
tor
![](https://ids.lib.harvard.edu/ids/iiif/494886805/755,1056,44,18/full/0/native.jpg)
easily
![](https://ids.lib.harvard.edu/ids/iiif/494886805/903,1057,33,18/full/0/native.jpg)
posi
![](https://ids.lib.harvard.edu/ids/iiif/494886805/667,1074,31,19/full/0/native.jpg)
tion
![](https://ids.lib.harvard.edu/ids/iiif/494886805/789,1074,22,19/full/0/native.jpg)
1B
![](https://ids.lib.harvard.edu/ids/iiif/494886805/648,1100,19,19/full/0/native.jpg)
C.
![](https://ids.lib.harvard.edu/ids/iiif/494886805/673,1100,36,19/full/0/native.jpg)
Turn
![](https://ids.lib.harvard.edu/ids/iiif/494886805/833,1102,19,19/full/0/native.jpg)
by
![](https://ids.lib.harvard.edu/ids/iiif/494886805/858,1102,82,22/full/0/native.jpg)
depressing
![](https://ids.lib.harvard.edu/ids/iiif/494886805/649,1120,27,19/full/0/native.jpg)
red
![](https://ids.lib.harvard.edu/ids/iiif/494886805/680,1119,84,22/full/0/native.jpg)
pushbutton
![](https://ids.lib.harvard.edu/ids/iiif/494886805/769,1120,25,19/full/0/native.jpg)
for
![](https://ids.lib.harvard.edu/ids/iiif/494886805/797,1120,105,22/full/0/native.jpg)
approximately
![](https://ids.lib.harvard.edu/ids/iiif/494886805/907,1122,35,19/full/0/native.jpg)
four
![](https://ids.lib.harvard.edu/ids/iiif/494886805/648,1139,61,18/full/0/native.jpg)
seconds
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1068,639,27,11/full/0/native.jpg)
ofes
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1188,916,20,17/full/0/native.jpg)
fig
![](https://ids.lib.harvard.edu/ids/iiif/494886805/648,1164,45,18/full/0/native.jpg)
NOTE
![](https://ids.lib.harvard.edu/ids/iiif/494886805/710,1164,37,18/full/0/native.jpg)
With
![](https://ids.lib.harvard.edu/ids/iiif/494886805/749,1164,22,18/full/0/native.jpg)
all
![](https://ids.lib.harvard.edu/ids/iiif/494886805/771,1164,83,18/full/0/native.jpg)
fluorescent
![](https://ids.lib.harvard.edu/ids/iiif/494886805/857,1164,45,19/full/0/native.jpg)
lamps
![](https://ids.lib.harvard.edu/ids/iiif/494886805/936,1165,66,18/full/0/native.jpg)
emission
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1024,1165,79,18/full/0/native.jpg)
phosphors
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1122,1166,78,18/full/0/native.jpg)
constantly
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1201,1166,48,18/full/0/native.jpg)
chang
![](https://ids.lib.harvard.edu/ids/iiif/494886805/647,1184,27,18/full/0/native.jpg)
ing
![](https://ids.lib.harvard.edu/ids/iiif/494886805/677,1184,92,18/full/0/native.jpg)
immediately
![](https://ids.lib.harvard.edu/ids/iiif/494886805/773,1184,37,18/full/0/native.jpg)
after
![](https://ids.lib.harvard.edu/ids/iiif/494886805/816,1184,54,18/full/0/native.jpg)
startup
![](https://ids.lib.harvard.edu/ids/iiif/494886805/869,1184,7,18/full/0/native.jpg)
;
![](https://ids.lib.harvard.edu/ids/iiif/494886805/988,1184,66,18/full/0/native.jpg)
becomes
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1060,1184,71,18/full/0/native.jpg)
stabilized
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1136,1184,41,18/full/0/native.jpg)
when
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1215,1184,39,18/full/0/native.jpg)
lamp
![](https://ids.lib.harvard.edu/ids/iiif/494886805/647,1202,60,17/full/0/native.jpg)
reaches
![](https://ids.lib.harvard.edu/ids/iiif/494886805/709,1202,35,17/full/0/native.jpg)
heat
![](https://ids.lib.harvard.edu/ids/iiif/494886805/746,1202,85,17/full/0/native.jpg)
equilibrium
![](https://ids.lib.harvard.edu/ids/iiif/494886805/841,1202,74,17/full/0/native.jpg)
Therefore
![](https://ids.lib.harvard.edu/ids/iiif/494886805/959,1202,105,17/full/0/native.jpg)
recommended
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1128,1202,91,17/full/0/native.jpg)
illuminators
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1221,1202,26,17/full/0/native.jpg)
em
![](https://ids.lib.harvard.edu/ids/iiif/494886805/647,1219,57,19/full/0/native.jpg)
ploying
![](https://ids.lib.harvard.edu/ids/iiif/494886805/848,1219,19,19/full/0/native.jpg)
be
![](https://ids.lib.harvard.edu/ids/iiif/494886805/873,1219,57,19/full/0/native.jpg)
allowed
![](https://ids.lib.harvard.edu/ids/iiif/494886805/950,1219,43,19/full/0/native.jpg)
warm
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1024,1219,47,19/full/0/native.jpg)
period
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1099,1219,16,19/full/0/native.jpg)
at
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1122,1219,36,19/full/0/native.jpg)
least
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1164,1219,22,19/full/0/native.jpg)
15
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1191,1219,63,19/full/0/native.jpg)
minutes
![](https://ids.lib.harvard.edu/ids/iiif/494886805/646,1237,50,18/full/0/native.jpg)
before
![](https://ids.lib.harvard.edu/ids/iiif/494886805/700,1237,47,18/full/0/native.jpg)
prints
![](https://ids.lib.harvard.edu/ids/iiif/494886805/773,1237,111,20/full/0/native.jpg)
transparencies
![](https://ids.lib.harvard.edu/ids/iiif/494886805/889,1238,26,18/full/0/native.jpg)
are
![](https://ids.lib.harvard.edu/ids/iiif/494886805/920,1238,51,18/full/0/native.jpg)
viewed
![](https://ids.lib.harvard.edu/ids/iiif/494886805/647,1267,20,18/full/0/native.jpg)
D.
![](https://ids.lib.harvard.edu/ids/iiif/494886805/673,1267,46,18/full/0/native.jpg)
Using
![](https://ids.lib.harvard.edu/ids/iiif/494886805/720,1267,48,18/full/0/native.jpg)
toggle
![](https://ids.lib.harvard.edu/ids/iiif/494886805/771,1267,48,18/full/0/native.jpg)
switch
![](https://ids.lib.harvard.edu/ids/iiif/494886805/846,1267,26,18/full/0/native.jpg)
top
![](https://ids.lib.harvard.edu/ids/iiif/494886805/981,1267,44,18/full/0/native.jpg)
select
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1029,1267,29,18/full/0/native.jpg)
one
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1080,1267,28,18/full/0/native.jpg)
two
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1112,1267,88,18/full/0/native.jpg)
illumination
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1204,1267,45,18/full/0/native.jpg)
levels
![](https://ids.lib.harvard.edu/ids/iiif/494886805/654,1285,11,19/full/0/native.jpg)
1
![](https://ids.lib.harvard.edu/ids/iiif/494886805/674,1285,33,19/full/0/native.jpg)
400
![](https://ids.lib.harvard.edu/ids/iiif/494886805/710,1285,16,19/full/0/native.jpg)
ft
![](https://ids.lib.harvard.edu/ids/iiif/494886805/733,1285,66,19/full/0/native.jpg)
lamberts
![](https://ids.lib.harvard.edu/ids/iiif/494886805/814,1285,12,19/full/0/native.jpg)
2
![](https://ids.lib.harvard.edu/ids/iiif/494886805/838,1285,30,19/full/0/native.jpg)
500
![](https://ids.lib.harvard.edu/ids/iiif/494886805/646,1315,18,18/full/0/native.jpg)
E.
![](https://ids.lib.harvard.edu/ids/iiif/494886805/692,1315,34,18/full/0/native.jpg)
turn
![](https://ids.lib.harvard.edu/ids/iiif/494886805/814,1316,23,18/full/0/native.jpg)
off
![](https://ids.lib.harvard.edu/ids/iiif/494886805/843,1316,61,18/full/0/native.jpg)
depress
![](https://ids.lib.harvard.edu/ids/iiif/494886805/908,1316,41,18/full/0/native.jpg)
black
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1633,330,237,27/full/0/native.jpg)
MACBETH
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1283,381,158,64/full/0/native.jpg)
prooflite
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1452,378,245,65/full/0/native.jpg)
transparency
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1279,454,115,99/full/0/native.jpg)
PLT
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1407,452,121,99/full/0/native.jpg)
214
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1517,452,41,98/full/0/native.jpg)
/
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1544,450,115,100/full/0/native.jpg)
ALT
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1536,571,28,37/full/0/native.jpg)
&
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1583,571,302,37/full/0/native.jpg)
MAINTENANCE
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1520,717,85,25/full/0/native.jpg)
Cleaning
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1653,718,107,24/full/0/native.jpg)
Relamping
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1362,751,71,17/full/0/native.jpg)
GENERAL
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1456,751,29,17/full/0/native.jpg)
The
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1490,751,67,17/full/0/native.jpg)
reflecting
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1561,751,62,17/full/0/native.jpg)
surfaces
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1660,751,64,17/full/0/native.jpg)
diffusing
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1728,751,41,17/full/0/native.jpg)
panel
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1401,766,48,16/full/0/native.jpg)
should
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1472,766,56,16/full/0/native.jpg)
cleaned
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1585,766,35,16/full/0/native.jpg)
once
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1622,766,40,16/full/0/native.jpg)
every
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1663,766,46,16/full/0/native.jpg)
month
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1746,766,35,16/full/0/native.jpg)
soap
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1813,766,43,16/full/0/native.jpg)
water
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1862,766,39,16/full/0/native.jpg)
clean
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1440,779,73,17/full/0/native.jpg)
performed
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1518,779,37,17/full/0/native.jpg)
more
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1558,779,37,17/full/0/native.jpg)
often
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1600,779,12,17/full/0/native.jpg)
if
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1615,779,75,17/full/0/native.jpg)
conditions
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1692,779,53,17/full/0/native.jpg)
require
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1337,802,75,17/full/0/native.jpg)
WARNING
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1433,802,20,17/full/0/native.jpg)
Be
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1455,802,33,17/full/0/native.jpg)
sure
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1508,802,78,17/full/0/native.jpg)
disconnect
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1702,802,36,17/full/0/native.jpg)
prior
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1758,802,61,17/full/0/native.jpg)
cleaning
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1356,823,32,17/full/0/native.jpg)
Two
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1390,823,20,17/full/0/native.jpg)
14
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1412,823,34,17/full/0/native.jpg)
watt
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1446,823,62,17/full/0/native.jpg)
Macbeth
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1511,823,32,17/full/0/native.jpg)
long
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1545,823,24,17/full/0/native.jpg)
life
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1727,823,70,17/full/0/native.jpg)
employed
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1525,838,56,17/full/0/native.jpg)
F14T12
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1585,838,31,17/full/0/native.jpg)
AVX
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1399,852,22,18/full/0/native.jpg)
50
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1692,852,65,18/full/0/native.jpg)
Although
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1761,852,42,18/full/0/native.jpg)
these
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1856,852,36,18/full/0/native.jpg)
have
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1338,868,57,16/full/0/native.jpg)
burning
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1443,868,37,16/full/0/native.jpg)
5000
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1484,868,42,16/full/0/native.jpg)
hours
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1625,868,68,16/full/0/native.jpg)
advisable
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1714,868,51,16/full/0/native.jpg)
relamp
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1807,868,39,16/full/0/native.jpg)
2000
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1867,868,41,16/full/0/native.jpg)
3000
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1475,881,41,17/full/0/native.jpg)
order
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1557,881,48,17/full/0/native.jpg)
certain
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1640,881,28,17/full/0/native.jpg)
you
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1672,881,35,17/full/0/native.jpg)
keep
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1709,881,44,17/full/0/native.jpg)
within
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1783,881,39,17/full/0/native.jpg)
close
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1825,881,10,17/full/0/native.jpg)
"
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1832,881,65,17/full/0/native.jpg)
standard
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1337,896,77,18/full/0/native.jpg)
tolerances
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1421,896,14,18/full/0/native.jpg)
If
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1569,896,35,18/full/0/native.jpg)
used
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1609,896,37,18/full/0/native.jpg)
eight
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1697,896,26,18/full/0/native.jpg)
per
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1726,896,28,18/full/0/native.jpg)
day
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1762,896,29,18/full/0/native.jpg)
five
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1795,896,36,18/full/0/native.jpg)
days
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1864,896,39,18/full/0/native.jpg)
week
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1338,912,73,16/full/0/native.jpg)
relamping
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1489,912,37,16/full/0/native.jpg)
done
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1583,912,34,16/full/0/native.jpg)
year
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1413,933,62,17/full/0/native.jpg)
preserve
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1502,933,56,17/full/0/native.jpg)
original
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1559,933,49,17/full/0/native.jpg)
quality
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1766,933,49,17/full/0/native.jpg)
assure
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1817,933,84,17/full/0/native.jpg)
standardiza
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1402,947,41,17/full/0/native.jpg)
other
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1606,947,31,17/full/0/native.jpg)
also
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1663,947,75,17/full/0/native.jpg)
adherence
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1786,947,36,17/full/0/native.jpg)
draft
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1824,947,33,17/full/0/native.jpg)
USA
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1858,947,42,17/full/0/native.jpg)
Stand
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1336,963,26,17/full/0/native.jpg)
ard
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1389,963,98,17/full/0/native.jpg)
Transparency
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1488,963,86,17/full/0/native.jpg)
Illumination
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1638,963,32,17/full/0/native.jpg)
only
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1362,988,94,17/full/0/native.jpg)
PROCEDURE
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1867,988,41,17/full/0/native.jpg)
place
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1421,1004,39,17/full/0/native.jpg)
table
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1485,1004,44,17/full/0/native.jpg)
bench
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1734,1004,51,17/full/0/native.jpg)
Loosen
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1853,1004,54,17/full/0/native.jpg)
knurled
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1337,1017,46,18/full/0/native.jpg)
knobs
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1470,1017,33,18/full/0/native.jpg)
near
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1534,1017,49,18/full/0/native.jpg)
handle
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1596,1017,26,18/full/0/native.jpg)
Lift
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1652,1017,37,18/full/0/native.jpg)
front
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1737,1017,34,18/full/0/native.jpg)
until
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1830,1017,47,18/full/0/native.jpg)
flange
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1877,1017,32,18/full/0/native.jpg)
just
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1338,1032,45,17/full/0/native.jpg)
clears
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1413,1032,34,17/full/0/native.jpg)
case
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1485,1032,35,17/full/0/native.jpg)
slide
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1634,1032,50,17/full/0/native.jpg)
toward
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1821,1032,30,17/full/0/native.jpg)
unit
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1885,1032,24,17/full/0/native.jpg)
far
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1338,1047,54,18/full/0/native.jpg)
enough
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1417,1047,51,18/full/0/native.jpg)
release
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1501,1047,67,18/full/0/native.jpg)
complete
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1661,1047,59,18/full/0/native.jpg)
Remove
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1840,1047,69,18/full/0/native.jpg)
assembly
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1504,1061,54,18/full/0/native.jpg)
interior
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1338,1077,31,17/full/0/native.jpg)
now
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1373,1077,49,17/full/0/native.jpg)
readily
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1425,1077,75,17/full/0/native.jpg)
accessible
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1755,1077,92,17/full/0/native.jpg)
conventional
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1851,1077,58,17/full/0/native.jpg)
manner
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1521,1092,62,16/full/0/native.jpg)
reflector
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1797,1092,53,16/full/0/native.jpg)
replace
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1853,1092,50,16/full/0/native.jpg)
fluores
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1338,1107,33,17/full/0/native.jpg)
cent
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1434,1107,60,17/full/0/native.jpg)
required
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1338,1131,58,16/full/0/native.jpg)
REPAIR
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1397,1131,35,16/full/0/native.jpg)
AND
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1434,1131,112,16/full/0/native.jpg)
REPLACEMENT
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1548,1131,22,16/full/0/native.jpg)
OF
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1573,1131,92,16/full/0/native.jpg)
ELECTRICAL
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1667,1131,59,16/full/0/native.jpg)
WIRING
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1338,1145,107,20/full/0/native.jpg)
COMPONENTS
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1455,1146,77,19/full/0/native.jpg)
BALLASTS
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1541,1146,113,20/full/0/native.jpg)
LAMPHOLDERS
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1663,1148,36,18/full/0/native.jpg)
ETC.
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1338,1167,58,15/full/0/native.jpg)
Proceed
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1399,1167,18,15/full/0/native.jpg)
as
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1418,1167,52,15/full/0/native.jpg)
follows
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1450,1184,53,16/full/0/native.jpg)
remove
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1412,1202,50,18/full/0/native.jpg)
screws
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1465,1202,61,18/full/0/native.jpg)
securing
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1528,1202,34,18/full/0/native.jpg)
dark
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1565,1202,33,18/full/0/native.jpg)
gray
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1628,1203,42,18/full/0/native.jpg)
cover
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1846,1203,59,19/full/0/native.jpg)
housing
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1524,1216,80,18/full/0/native.jpg)
sufficiently
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1625,1217,36,17/full/0/native.jpg)
clear
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1664,1217,62,17/full/0/native.jpg)
machine
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1785,1218,27,17/full/0/native.jpg)
Tilt
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1856,1218,49,17/full/0/native.jpg)
assem
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1356,1232,24,17/full/0/native.jpg)
bly
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1380,1232,60,17/full/0/native.jpg)
towards
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1578,1233,39,17/full/0/native.jpg)
while
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1618,1233,47,17/full/0/native.jpg)
taking
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1668,1233,32,17/full/0/native.jpg)
care
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1703,1233,25,17/full/0/native.jpg)
not
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1749,1233,42,17/full/0/native.jpg)
strain
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1825,1234,42,17/full/0/native.jpg)
break
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1870,1234,41,17/full/0/native.jpg)
wires
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1355,1248,76,17/full/0/native.jpg)
connected
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1453,1248,90,17/full/0/native.jpg)
components
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1547,1248,63,17/full/0/native.jpg)
mounted
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1337,1265,17,18/full/0/native.jpg)
3.
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1533,1265,61,19/full/0/native.jpg)
removed
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1595,1266,36,18/full/0/native.jpg)
from
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1804,1267,46,18/full/0/native.jpg)
wiring
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1851,1267,52,18/full/0/native.jpg)
connec
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1354,1281,40,18/full/0/native.jpg)
tions
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1519,1281,48,18/full/0/native.jpg)
except
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1570,1281,90,18/full/0/native.jpg)
lampholders
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1827,1281,36,18/full/0/native.jpg)
Each
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1356,1295,47,18/full/0/native.jpg)
holder
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1420,1295,57,18/full/0/native.jpg)
secured
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1497,1295,31,18/full/0/native.jpg)
side
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1860,1297,49,18/full/0/native.jpg)
Repair
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1388,1311,88,18/full/0/native.jpg)
replacement
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1480,1311,80,18/full/0/native.jpg)
procedures
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1591,1311,57,18/full/0/native.jpg)
obvious
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1652,1311,37,18/full/0/native.jpg)
upon
![](https://ids.lib.harvard.edu/ids/iiif/494886805/1692,1311,76,18/full/0/native.jpg)
inspection