I have the K8081 Power Amplifier and i have some problems with it.
First of all: When i turned on the first time i noticed that i have confused the two transistors.
What followed was a little firework… The resistor R42 and transistor T4 were damaged, the resistor R16 was completely burned up.
So i started to remove every prefabricated part and then checked/replaced them. Then i put a sinusoidal signal on it and the oscilloscope showed me the signal with an amplification of 200. But only in one way. So i looked for the mistake and found it. The transistor T4 was damaed, i forgot to replace him.
Next time i turned on, both high resistances R42/R43 started to smoke. So i checked all of the components again and replaced R42/R43. RV1 is still turned low.
Then it started to smoke again.
So where is the problem now? I can´t imagine any mistake.
Best regards
Dj Wooks