Stripboard Layouts

I've seen alot of people wanting microcontroller-free relay bypass boards. There's a few designs out there, but most of them seem overly complicated, so I designed this one. It uses two 2N3904 as a simple switch flip flop and debouncer. It's not perfect (the occasional mistrigger happens) but overall it works pretty well for such a simple design. :) I'm selling a   Relay Bypass PCB   in the shop for an improved version (with solid debouncing) with a smaller size than the vero version. Check it out. :)

Here is a small utility board - a simple buffer followed by a phase inverter. You can take the output from either stage. It can be very useful if you are adding a clean blend to a circuit that is inverting the phase.  I recommend putting this in front of your main effect, but keep in mind that not all effects will respond the same with a buffer in front.  I didn't include polarity protection, DC filtering and an output capacitor since this is meant to be used together with another effect (not stand alone). This circuit is pretty much opamp basics 1. Could possibly be improved with some filtering caps.

Here's a cool  auto wah from Robert Penfold that can sound really funky and bubbly. I have adapted it for true bypass and added a volume pot since the output was alittle bit above unity. The controls are a bit finicky, especially the frequency controls that goes from low (so low that it kills the signal) to above the hearing range. I think a log pot work better here. I used a 2M resistor insted of the 1.8M and a BC108B transistor with good results. The 10K trimpot sets the input for the envelope follower. Adjust it until it sounds good and you get a "natural" sounding release. Fredrik Lyxzén · autowaa

This is Jon Patton's adaption of the Tube Driver, but it uses a JFET insted of a tube. It also has a few extra goodies thrown in such as an 18v chargepump and a mids switch. This circuit sounds very good IMO and has excellent controls and a wide range of tones. Thanks to Jon for sharing his work!

Here is a great sounding silicon fuzz made by Davide Gironi. Original thread  here .

Here is another very nice compressor / overdrive. This one is a brand new creation from Sam Hay, the inventor of the   Cherub Chorus   that I posted a layout for earlier. Read more about it in the original thread   here . For schotty diode I used a 1N5817 in my build with good results.