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Technical Tips from Mark W. Persons |
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Gates Solid Statesman audio console repairs |
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| February 23,
2015: Some might remember the Gates Radio (division of
Harris-Intertype) Diplomat and Executive series of radio broadcast audio
consoles. They were built starting in the early 1970s as the first
of the "Solid-Statesman" line, replacing previous designs with vacuum
tubes. The Diplomats are monaural while the Executives are stereo. |
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| A power supply and audio modules for
these consoles came in the shop for repairs and a "50 year tune-up."
Well, it was a trip down memory lane to say the least. They even had the smell of being vintage. I used a circuit card connector to get power and signals in and out of the card. Here, a cue amplifier and Gates power supply are being worked on together. The clipped oscilloscope waveform shows the result when one of the output transistors was missing. |
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Here, an M5700 Program Amplifier is
being worked on. A special mating connector (blue on the right of
the module) was configured so power, gain control, input and output
wires could be attached.
The experience was a bit difficult because transistors of that era are germanium based rather and the silicon transistors of today. In the end, it all worked out and the customer was happy. |
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The stories go on and on.
Stop in again sometime. I'll leave the soldering iron on for you.
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Questions? Email Mark Persons: teki@mwpersons.com |
