Assembled and tested line preamplifier board with power supply board. Preamplifier is suppose to be some "MBL" copy, IMHO it's a standard two op-amps per channel circuit, one with gain, one as buffer. Nicely designed , good grounding, a lot of filtering...works and sounds great.
Stuffed with good material, genuine Alps poti, op-amps installed are BurrBrown OPA-134, resistors that control gain are on gold plated sockets, easy adjustable for other gains or op-amps.
Power supply is low-noise, op-amp servo LM317/337...only needs suitable transformer.
Price 50€ for both boards or PM me with some offer.
Regards, Davorin
Stuffed with good material, genuine Alps poti, op-amps installed are BurrBrown OPA-134, resistors that control gain are on gold plated sockets, easy adjustable for other gains or op-amps.
Power supply is low-noise, op-amp servo LM317/337...only needs suitable transformer.
Price 50€ for both boards or PM me with some offer.
Regards, Davorin
