Blown resistors in a BK Electronics MF300? With circuit diagram!

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Ketje

Ketje

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Joined 2012
Mooly said:
You're very welcome :)

I'm still puzzled over those 4k7 resistors and Bobs MJE340 model which will not give a working amplifier. However if I increase R7 from 100 to just 102 ohms then it all runs correctly.

Something is very marginal there.
Click to expand...
If you put in 47k (2x) the amp works with R7 = 1k2 but the output swing will be limited .
R16 is to be adjusted to the driver current for the right bias current.
Mona
 
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