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To attach the units, proceed as follows:
a. Temporarily remove the upper and lower right-hand corner
panel screws from the front panel of the power supply. Use these
screws to attach the adaptor plate to the power supply, with the left-
hand long end of the adaptor plate placed over the right-hand end of
the front panel.
b. Remove the front and rear left feet from the oscillator. Using
one of the screws removed, attach the clip to the oscillator L bracket
in the left rear foot mounting location. Note that this hole in this lo-
cation is tapped 10- 32 to receive the mounting screw. Do not replace
the feet.
c. Attach the oscillator to the power supply by fastening the
upper and lower right-hand corners of the adaptor plate to the cor-
responding tapped holes in the upper and lower left-hand corners of the
oscillator panel. Attach the clip at the left-hand rear of the oscillator
to the matching hole in the
righ~-hand
side panel of the power supply.
The necessary screws and nut are supplied with the power supply.
The Type 1269-A Power Supply can also be rigidly attached to
the left-hand side of a Type 1361-A Oscillator. The power cables are
coiled between the cabinets and the end frames
.
To attach the units
proceed as follows:
1. Remove the dust covers from both instruments by unscrewing
the two thumbscrews at the rear of each cover and removing the covers.
2. Remove the rubber feet from the right-hand side of the power
supply and from the left-hand side of the oscillator.
3. Coil the power cables and plug them in as required.
4. Slip the long 10-32 screws supplied with the power supply
through the matching holes near the rear on the side plates of the in-
struments, starting them through the oscillator side and engaging the
nuts on the power-supply side.
5. Secure the front panels of the oscillator and power supply by
means of the small adaptor plate supplied with the power supply. The
screws that secure the power-supply panel to its right-hand end frame,
and the oscillator panel to its left-hand end frame, are temporarily re-
moved while the adaptor plate is put in place, and then the screws
are reinstalled.
4.3 RELAY-RACK MOUNTING. To rack-mount the Type 1269-A Power
Supply attached to one of the oscillators mentioned above, a Type
480-P412 Adaptor Plate Set is required. After attaching the power
supply to the left-hand side of the oscillator as described in paragraph
4. 2, install one adaptor plate on the left-hand side of the combined
unit, and the other on the right-hand side. The screws required are
supplied with the Adaptor Plate Set.
4.4 ELECTRICAL CONNECTIONS. Electrical connection to one of
the General Radio oscillators listed in paragraph 1 is included in the
3
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