Hi Jari

replacing the potentiometer doesn't change anything. I don't have the
schematics of the A108 here, but there is usually an input opamp, which
has assumingly a too high amplification due to a defective or wrong
feedback resistor. For dedicated error tracing some measuring equipment
(oscilloscope, ohmmeter) and mesauring know how is needed.

I am sure Dieter will jump in soon.

Florian

jalmari3 schrieb:

> The other pots are B50K (linear ). If I swap all except Frequency pot to A50K, do I get less sensitivity at near counter clockwise position wihtout loss of range here too Attenuating would then work like with Cwejman modules, which I prefer