The Kassutronics Pitch Quantizer was the first true SDIY project I undertook. I’ve soldered lots of kits going back in the MOTM days, but this involved sourcing all of the parts and assembling the module. There was a major hurdle to make sure that all of the components were correct and would fit annnd I had very limited SMD experence.

Functionally it worked the first time I powered it on, but I did have a few bad connections on the shift registers used for illuminating the LED buttons. Also there was a later board modification required to make sure 12v didn’t leak out when plugging in the 2nd gate output.

Disassembling the panel and reflowing the SMD chip packages did the trick to get everything illumimating

A quick slice of a trace with a razor blade and soldering in a “bodge resistor” and the quantizer was back to two channels of awesomeness… now I’m seriously thinking of upping the resistance on those eye bleedingly bright blue LEDs!!