- There is no audible effect;
- output signal is below unity gain;
- sometimes, audible input distortion is heard (a bit like crackles).
- The LFO seems to work fine, according to the LED blinking when I turn the pots.
I am using the layout with the external LDR daughterboard (which uses 3 x TL072).
I have used 4xGL5516 and a yellow 5mm led.
I think that my build is quite clean (I checked several times, and didn't notice any trace or cut error).
I have measured the voltages at the IC and transistors pins : they all share the same "voltage pattern" (values between 1 and 1.4V, except pin4 which is 0 and pin 8 which is slightly below 9V) :
Both transistors have 0V at their Emitter, around 0.3 and 0.6 at the Base, and changing values around 3.5 and 4.80 at the collector.
I have read on tagboardeffects that i am not the only one experiencing such issues, but i couldn't find any hint to fix the issue. I'd be grateful if anyone could point me toward a direction where to look at...