GE 7-7800A Boombox

Andy King
December 16, 2024, 11:01 pm
March 13, 2025, 3:07 pm

Summary

9" multi-function CRT with carrying handle. Functions include a TV tuner, cassette player/recorder, AM/FM radio, and stereo. It has aux inputs for external composite or stereo audio sources.

Audio output is only supported via the integrated stereo amplifier - there is no line output available, and no integrated speakers. You must attach speakers for sound output. There is a matching set of speakers that go with the TV, but their specs and model information are not known at this time.

Manuals

No owner's manual available at this time.

Notes

To operate the CRT part, first you press Power (you should see a red LED come on - if you don't, try rapidly pressing power several times - if you still don't, there is a power supply problem). Once powered, you press "TV/Audio" above the graphic equalizer to toggle between the TV or audio functions.

To switch between the RF input and composite input, you press "AUX" while the TV active.

To operate the audio functions, you press that same TV/Audio button again - the TV side should turn off. Next you can use the AM/FM/Tape buttons to toggle what audio function is active. If you don't hear anything, try pressing AUX. If AUX is engaged, none of the audio functions will work because it is expecting an audio input via the rear RCA jacks.

The "Oscillator A/B" switch near the audio jacks is meant to be toggled if you are hearing a hum or whistling interference while listening to or recording from AM radio. It is a somewhat common feature on boomboxes of the era.

There is an OEM remote (model # unknown) which provides channel changing, volume adjustment, and some basic picture adjustments which are otherwise unaccessible from the outside. Inside, there are pots for adjusting brightness, contrast, geometry, and more.

There is a switch next to the composite input jack which changes the RF tuner between CATV modes.

The TV chassis does indeed have proper horizontal linearity despite only being 9" viewable size. Many smaller CRTs do not have proper horizontal linearity circuits due to cost-cutting.

Gallery

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