The Pass Pub: The High-End Off Topic Thread

Re my previous post - I visited Zen's link to his page describing the Hitachi refurb/redesign, and answered my own silly-*** question. Interesting reading...

I just remembered I have a preamp design from back in the 1989/1990 time frame utilizing cascaded complimentary differential jfet stages (inspired by the Hitachi app note) with small mosfets at the outputs (Supertex mosfets with smallest die (VN/VP01) in TO-220 package - not made any more). The preamps are more or less complete, but probably need tweaking, dust removal, and corrections for the RIAA equalization filter. It might be interesting to wake them up, package them in some rudimentary way, and haul them to BA 16. The design is way more complex then what I usually do these days. It may be interesting to see if the extra fiddling around is worth it. The boards (homemade PCB) are also a showcase for lots of obsolete parts.