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Vintage Amateur and Military Radio Amateur/military receivers and transmitters, morse, and any other related vintage comms equipment.

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Old 12th Aug 2018, 12:50 pm   #1
mm0 dhh
Triode
 
Join Date: Dec 2011
Location: Perth, Scotland, UK.
Posts: 21
Default Any info for McKay Dymek DR33?

Unfortunately it's not fully working, the synthesiser is working thankfully. but there's no audio other than expected power amp noise. The power supply regulators seem to have plausible voltages on them.

One clue is the signal meter swings to full deflection so perhaps an AGC fault silencing the output.

It's a fairly complicated receiver so I really need a circuit diagram or even info on the IF board.

Thanks, Lloyd.
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Old 13th Aug 2018, 3:53 am   #2
Synchrodyne
Nonode
 
Join Date: Jan 2009
Location: Mt. Maunganui, New Zealand
Posts: 2,026
Default Re: Any info for McKay Dymek DR33?

Possibly here:

http://www.prc68.com/I/DR33.shtml

Cheers,
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