barton 7805 to lm317 adaptor, kit
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barton 7805 to lm317 adaptor, kit
pcb and parts to complete one barton 7805 to LM317 adaptor
this board allows a module that uses a fixed voltage regulator (7805) to use a trimmer-adjustable regulator (LM317)
more information here: http://www.bartonmusicalcircuits.com/7805/documentation.pdf
each barton bmc001 simple quantizer pcb requires one of these adaptors to refine the tuning. If you have a dual quantizer, two kits are needed