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Old 13th May 2021, 3:07 pm   #3
Radio Scotland
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Join Date: Jul 2020
Location: Larkhall, South Lanarkshire, Scotland.
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Default Re: Selga 405 audio problem.

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Funny thing is the schematic shows the speaker connected to the secondary (two contacts) side of the transformer. But it's actually connected to the primary side (centre tapped side)

Speaker is 8 ohms.

Cheers, Jay.
A loud speaker is always connected to the secondary side of the output transformer.

Either the wiring or your observation is wrong. Perhaps someone has had a go at fixing the set before?
Yeah i'm missing something, The guy i bought it from took it apart hoping it was something obvious he could fix, But he never done any work on it as it looks totally original.

Iv'e noticed the bases of the output transistors have 9 volts on them. Surely that can't be right.

A schematic i found online shows the bases as having 9 volts on them but the factory schematic calls for 0.12v


Cheers
Jay
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