Grunow 654.. No Audio

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Grunow 654.. No Audio

vecher
Phorum Expert

Posts: 933
Threads: 140
Joined: Mar 2015
City: Lansdale State, Province, Country: PA

11-28-2018, 07:04 PM

Just recapped.. turned on and at 100 Volts in draws 400 Ma..

B+ to ground is approx 310 Volts DC..

No audio.. When turning volume up and down get scratches.. No noticeable Hum..

Can scan schematic . Replaced the Bias cell with Watch battery.. Plus to Ground..

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Grunow 654.. No Audio - by vecher - 11-28-2018, 07:04 PM

RE: Grunow 654.. No Audio - by vecher - 11-28-2018, 07:28 PM

RE: Grunow 654.. No Audio - by morzh - 11-29-2018, 04:02 PM

RE: Grunow 654.. No Audio - by vecher - 11-29-2018, 06:05 PM

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