Re: 2445B vertical non-linearity other issues.


Robin Szemeti
 

Yep, I am familiar with class A/B amp biasing .. I have built "a few" audio amplifiers.

There is only one resistor, R401 I Bias, that seems relevant. From other threads it looks like the fault with this device usually lies on the thick film itself. It seems in the past, there was a re-bake programme for these devices which recovered 70% of them ... but I'll check R401 and see what gives ...

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