Equipment information:

Radio City Products Company 777A Signal Analyzer
Radio City Products Company
Model: 777A
Date: 1949
Category: Measurement instruments
Group: Signal Analyzer
Description: Signal Tracer
                                    The RCP Signal Tracer, Model 777A has been designed to be a
timesaving device
facilitating the servicing of AM-FM receivers, audio
amplifiers, and television sound
systems. It is an aid to the serviceman in locating faul ty
components, stages, stage
gain, distortion, hum, etc . The unit contains an AC
operated, three-stage amplifier
with traveling probe. The probe allows direct insertion into
stages carrying radio
frequency currents.
In addition to the RF probe, a special microphone-phonograph
connector is provided
so that the functioning of either high impedance microphones
or phonograph pickups may
be determined. The step and vernier attenuator is accurately
calibrated so that direct
reading stage gain measurements may be made.
Due to the extremely high sensitivity of the newly developed
777A, a slight hum may
be noticed when used "wide open". If this is the case, the
line cord should be reversed
in the AC socket. The same effect may be had by grounding
the case through a .05 mfd.
condenser to a water pipe, metal conduit, etc.

These manuals are available for the above equipment:

Radio City Products Company -- 777A -- Service and User Manual
File name: Radiocit-7262-Manual-Page-1-Picture
Manual Type: Service and User Manual
Pages: 7
Size: 1.79 Mbytes (1874250 Bytes)
Language: english
Quality: Scanned document, all readable.
Upload date:
MD5: e6c896a9e7a259c4011ddb6c472a0b01
ed2kID: 9c826f731ac0db546d856c838acad893
Downloads: 82 since 03 October 2015
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