Tag Archives: Circuit

2520 x 30

If you ever make your own CAPI preamps, or if you have an API console that occasionally burns through op amps, you’ll be seeing plenty of these little guys. Fully discrete API style op amps, known commonly as 2520’s (which according to UD also means white dude).

WP_20140401_008_2WP_20140401_006_2These particlar units are the GAR22520, sold through the CAPI website. They sound great, they’re pretty inexpensive to build, and it’s much easier if you just get them all done at once.



This pedal is based on the Lovepedal Eternity, burst version.


Its a pretty rippin’ distortion overall, but a bit on the thin/fizzy side for my taste.  Besides being based around the LM1458 opamp chip, there’s really not a whole lot to the circuit on this pedal

trem_02 trem_03


This is a boost pedal designed after a Landgraff Boost (very similar to the Zvex SHO) and a Fulltone Fat Boost; it contains both circuits which run independently. Between these two pedals you can get an extremely wide range of clean boost sound- if you’re in to that sort of thing.

Pictured on the right is the Fat Boost, and in the back is the Landgraff style boost. Each of the circuits are fairly simple and can be fit into a small enclosure.



As you can see, it is a bit crowded inside, but not unreasonably so. It still has plenty of access to make any modifications or fixes, should the need ever arrive. The knobs had to be placed on the top of the pedal, because the potentiometers would have been in the way of the circuits inside otherwise.

update: This may or may not have been used in the new Camera Obscura album. But it totally was.

Candy-colored Mammoth

This is a Fuzz pedal designed (‘tuned’) to be particularly useful with bass guitar. Though it sounds wonderful on many instruments. It is essentially a ‘Wooly Mammoth’ style clone. This one, in particular, was made for Ali, bass player in the Portland band ‘Talkative’.

The circuit itself is pretty simple and relatively small. It has two silicone transistors, as shown below.

Here is the gut-shot; nothing very fancy going on here.

And here is the finished product all cased up. The body is ‘fire-mist’ (charcoal powdercoat with green sparkle) and the bottom lid is pink sparkle, to match the pink Davies-style knobs and the pink LED.