Original effects with schematics, layouts and instructions, freely contributed by members or found in publications. Cannot be used for commercial purposes without the consent of the owners of the copyright.
If you use two separate resistors to the two LEDs from the op-amp output, you prevent problems caused by differences in characteristics of the LEDs. It's also worth using 1 uF electrolytics, rather than the expensive non-polarised capacitors. I know that the non-pol types are "better" for the audiophools, but if you put the electrolytics with the positive side going to the FET and the positive side to the op-amp, you won't hear the difference, and will save some space and cost!
Hope this helps!
C.
"Why is it humming?" "Because it doesn't know the words!"
While i was using the LED envelope thing for other effect i have noticed that playing on higher strings has a stronger effect than the lower end.
I just put a cap (1n) on the opamp loop to compensate, and now it seems to have a more balanced response
I'm thinking of building one of these, but not sure whether to build this second one or the first one?
I haven't read through the whole thread (sorry! ) - but what are peoples' thoughts? what are the differences other than the obvious board layout?
does the fizzy noise keep at a constant volume regardless of output volume pot? if so it may be the opamp on the sidechain is clipping and putting noise on the power lines.
ok, i wanna report back because i also had problems with this one. The fizzy distortion rifing on top of the sound...i solved it by going up on the 560ohms resistor to ground on the feedback loop of the opamp. apparently i got rail distortion, maybe because i coulnd't get the right optocoupler, and use an ldr with a led. The only drawback is that i used a true bypass and the tone changed when pedal on...it makes ait a bit thinner or brighter...
hi, just wanted to check with someone about the pcb layout - it seems like the tip ring and sleeve are all connected at the input jack...this can't be right, can it? I don't have these fancy looking jacks so ...just wanted to check before i start. Bajaman?
Could I add a jack for a tuner at the point of the circuit that is labeled as "bypass output to footswitch"?
The tuner would always stay switched on. Would that influence the limiter circuit in any way?