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Old 14th May 2017, 8:20 am   #1
Otari5050
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Default Help to ID this chassis and valves

Hi folks,

Picked up a Gulbransen desk-top radio-gram but it's missing the ID info off the back.
Also missing two tubes, which so far I believe are a type 80 rectifier and possibly a 2A5 output.
I'd like to ID the chassis so I can find a diagram for it and work out what the tube complement is, as only one has a number on it (the others have worn off) and that's the one in the centre at the rear which is a type 85.
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Old 14th May 2017, 9:47 am   #2
Yarraman
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Default Re: Help to ID this chassis and valves

If one of the tubes is an 85 then the radio must run on 6.3 volt tubes, so i would expect the output to be a 42 with an 80 rectifier. The others could be 6A7 convertor and possibly a 78 or 6D6 IF amp. Most of the schematics for these are all very similar.
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Old 14th May 2017, 11:30 am   #3
short wave
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Default Re: Help to ID this chassis and valves

Any chance of a front photo as well? thanks
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Old 15th May 2017, 10:16 am   #4
Otari5050
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Default Re: Help to ID this chassis and valves

Here it is in all its resplendent glory
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