On 12/03/19 4:11 pm, Vic WA4THR via Groups.Io wrote:
The V4 use of discreet transistors suffers from crossover distortion in
the audio amp final stage. Raj did some great work identifying this and
providing a fix:
/g/BITX20/message/52181?p=,,,20,0,0,0::relevance,,crossover,20,2,0,22188783
I used a 10-turn 100 ohm mini preset pot and it ended up between 30-40
ohms. That completely fixes the distortion.
Thanks Vic. I did more or less the same (I didn't have a preset, so I
soldered a 47 Ohm resistor) and it fixed the distortion as well.
Ramakrishnan