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Vintage Tape (Audio), Cassette, Wire and Magnetic Disc Recorders and Players Open-reel tape recorders, cassette recorders, 8-track players etc.

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Old 8th Apr 2017, 6:53 pm   #1
sparkymike
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Default Fidelity Argyll Major.

Hi I am checking out this Fidelity Argyll Major tape recorder and have cured various faults but volume seems a bit low. I am checking the cathode voltage on the output valve and this is around 12 volts. The service sheet states 7 volts on playback.
The resistor marked red in the thubmnail is around 10 % high.
Would this cause problems here ?
Mike.
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Old 8th Apr 2017, 7:02 pm   #2
Boater Sam
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Default Re: Fidelity Argyll Major.

No.
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Old 8th Apr 2017, 7:25 pm   #3
Cobaltblue
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Default Re: Fidelity Argyll Major.

More than likely to be the grid coupling capacitor C10 on the trader sheet leaking.

The cathode resistor is probably 10% tolerance to start with.

Cheers

Mike T
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Old 10th Apr 2017, 7:46 am   #4
sparkymike
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Default Re: Fidelity Argyll Major.

Hi,
Thanks for above input.Will try that later when time permits.
The mike I got with the machine is a Walter, die cast model. Are these a ribbon mike ?
If so, can they be repaired or serviced without damage ?
Mike.
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