I installed new transistors in the AWF-023 Equalizer Amplifier board on the Pioneer SA8500II amp. I used the KSA992s and KSC1845s. The voltages on Q9 and Q10 are off a little and I wasn't sure if I need to change any of the bias resistor values? Also the current is at 4.1ma instead of 3.5ma. Not sure if it's off enough to matter? I have all the voltages marked on the schematic. Sorry the schematic is a little light.
Kennyg
Kennyg
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I can't believe there is 120+ views and none of them knew how to bias this type of transistor phono preamp. Or at least tell me if it's possibly okay the way it is.
Thanks!
Thanks!
Why did you replace the original parts?? And then fret over tenth-volt changes?
And yes that image is awful light.
How does it sound?
And yes that image is awful light.
How does it sound?
Or at least tell me if it's possibly okay the way it is.
It's perfect.