Hi fellas,
I have (2) Nelson Pass B1 boards that are partially built with very high quality parts (Caddock MK132 resistors, input capacitor is 1uf Mundorf MKP capacitors bypassed with a 0.01uf Vishay/Roederstein MKP1837 and an output capacitor of 1uf Obbligato Gold type). It was designed to be used for amplifiers that have a minimum of 25K input impedance and has been ok'd by Nelson Pass. It also has Nelson Pass tested matched Jfets installed. Let me know if there is any interest with a pm. I would be willing to let each one go for $50 including shipping in the U.S. All soldering with WBT solder and very cleanly done.
I also have an 18V shunt regulator designed by Paul Hynes and a Hammond transformer + Peter Daniel designed Power supply using Mundorf electrolytic capacitors and Hexfreds. PM me if there is interest in this. It was designed for the B1 buffered preamp.
I have decided on an active differential tube preamp which is why these are for sale.
Best,
Anand.
