Half Pint Overdrive (Runoffgroove with mods)

[Aleph Null]

This is my take on the Runoffgroove "Grace" overdrive.



The JFET input buffer of the original is replaced here with a BJT buffer for an input impedance of around 1M ohm (depending on the transistors gain). Bias voltage is taken from pin 7 of the LM386 which saves a couple resistors and a little bit of space. A tilt EQ sits at the end. Unlike a BMP, this offers a mid bump. The switch bypasses the tonestack.



This has the characteristic crackly decay of every other LM386 overdrive I've heard. I wouldn't want to use this into a clean amp, but it does sound very good pushing a dirty amp or another overdrive. You get that percussive attack and the mid boost in the tone control keeps everything tight.

[harryklippton]

That looks really sleek!

[Aleph Null]

That looks really sleek!

Thanks! I had originally planned to do a graphic, but I found I liked the look of the raw aluminum.

[harryklippton]

Yeah it's a good look and the grey knobs complement it nicely