ProAnalog MkIII Fuzz

Here's a variation of the classic Tone Bender Mk II Professional from ProAnalog Devices. It uses PNP transistors, so you'll have to use either a battery or voltage inverter to daisy chain this with other pedals. It seems they've used several different transistors, but they're outlined in the schematic from Scotty himself. Easy fit in a 1590B. And if you want to make it as a negative ground effect, use NPN germanium transistors and flip all polarized components in the layout.

Bass Direct Box

Got a request for the DI portion of the Hartke LH1000 bass amp. This is more or less that, but with a simplified power section. In the amp this runs off a bipolar 15 volt supply, but I would think it would also work with regular 9 volt supply. There's not an unbalanced output, but if you need to add that you can probably add it off pin 3 of the XLR. Schematic for reference.

Escobedo MOSFET Duende

Here's a simple MOSFET-based booster circuit that'd be a nice alternative to the SHO. Should fit in a 1590A. FYI, the 1N4739 diode in the layout is a 9.1v zener. Here's the schematic for reference.

Baja AFD MkII

Gotten a couple requests for this one. Here's Bajaman's second take at his AFD circuit with a better frequency response than the first AFD. More info here on FSB. Should fit nicely in a 1590B.

Face-Bender

Got a request for this one for Fuzz Friday. The Tone Bender Mk.II Professional is essentially a Fuzz Face with an extra gain stage up front. The Fuzz-Bender basically puts the extra gain stage of the Mk. II on a switch, allowing you to more or less switch between a Tone Bender and a Fuzz Face. Layout is based on this schematic.

EQD Arrows

I traced this one a while back and created the Lawn Darts PCB over on the store from it. About time I made a perf and etch layout. If a Rangemaster and an Electra ever got together and had a baby, the Arrows would be the baby. Should be an easy fit in a 1590A with the pot board mounted.

Barcus-Berry 3000A

Stumbled across this schematic on FSB. It's a buffer/EQ/preamp for peizo pickups, specifically all Barcus-Berry electret microphone systems. I figured most would be building this into an instrument and not a pedal, so all the pots are off-board. If you're planning on running it only off a 9v battery, you cab get away without the power filter cap (47uF) or the polarity protection diode (1N4001).