Thanks "jond", I've been talking with Joe at Tempo Electric about rebuilding my power supplies and having him give the preamp a once over. Since the PS's are now 60 years old, it's quite certain many components have drifted out of spec. Surprisingly he diidn't think the preamp itself would need much if it's working properly now, but he'll have a better perspective than I. Plus I should add I'm considering trying to implement his 300B amps to complement this preamp.
"islandmandan" I truly appreciate your offer for direct contact and look forward to a continued discussion off-line. However if anyone else is interested in this content I would be happy to share the broad strokes in the forum.
"islandmandan" I truly appreciate your offer for direct contact and look forward to a continued discussion off-line. However if anyone else is interested in this content I would be happy to share the broad strokes in the forum.