Friday, April 15, 2022

Ukrainian Army BMP SN 002 Going to Auction

Over on Instagram there's been an auction of sorts going on to benefit Ukrainian relief efforts called "Pedals for Ukraine." A few weeks ago, I finished up my first early 90's Sovtek Big Muff Pi clone and at the time was trying to figure out a way to give back since I'd sourced a lot of the key components from Ukraine. Well, now that serial number 002 is completed, I've decided rather than trying to sell the pedal and give half to relief, I'm going to just donate it to the Pedals for Ukraine effort so all the funds get to those who need it - and someone gets a really great sounding pedal to boot!


This build follows exactly the same pattern as before using the Tayda board coupled with original KD521A diodes and KT3102E transistors. The resistors are all modern Yageo and Speer 1% tolerance. The film capacitors are mostly Panasonic film capacitors with a few WIMA ones thrown in when I didn't have a Panasonic in that value. 


As before, the 3PDT daughter board is from Frog Pedals (the newer model) and actuates the two LEDs - the red one for when it is in bypass mode, and the green one for active mode. Because these are older Russian / Soviet LEDs, they are dimmer than what most people are used to modernly - especially the green one! All of the connections to the jacks, as well as the wiring to the LEDs themselves is wrapped in tubular heat shrink to protect the solder joints.


The enclosure is a copy of the EHX-style enclosure that the Tayda boards are designed to go into. The potentiometers are all Alpha, and I'm using new production EHX knobs. The enclosure is hand decaled and painted in "Ukrainian" (definitely not Russian anymore) 4BO green with several coats of flat lacquer to give it a military appearance.


The photo above shows the unit in bypass mode while the one below shows it in active mode.


Front view with the Steggo placard.


Rear view with the serial number.


I've already talked to pedalsforukraine directly and have sent them the details of the pedal itself. I'll post again when it is going up for auction! Bid early bid often!

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