Can't adjust the resonance setting

just ending the assembly of the Shruthi-1 NOV2010 batch SMR-4 filter, everything is fine but I can’t
adjust the resonance trimmer I follow the instructions but the was unable to make self-oscillation,
and when turn the resonance pot the changes in the sound are minimal, other wise it sounds great.
Yes, I’m a newbie.
Thank you for your help in advance.

I’d bet for a swapped Resistor somewhere so that the range of the Reso Trimmer isnt sufficient… have you checked all the placings of the parts??

I’ve had the same problem with my 1st shruthi…bad solder joints were involved (even if they “looked” fine (for a newbie like me))…

Thank you guys!
I will check all the soldering.

resurrecting this post…

I had the same problem, but it was because i did not turn clockwise enough. So if you hear nothing, continue turning…