This was Don's test bed preamp that he built for/with Peter Clark (Redpoint Audio Design). Phono and Line stage with external power supply. Has an ALPS stereo pot - lots of neat features:One input that is wired directly to the output via a set of stereo balance resistors - so there is no volume pot to go thru. Phono on/off with a mute switch Phase inversion toggle switch Delayed power up relay (that retards the flow of plate voltage until the filaments are all hot). External tube rectified power supply (that helps keep power supply noise away from the line and phono stages). Can be shipped on buyers dime. Will need two boxes. Comes with the tubes that are in it (all vintage). As with all of Don's amplifiers and preamplifiers - this unit sounds wonderful and is very simple. Thanks for looking -
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