I have a recently upgraded Carver C-1 preamp with all the BillD upgrades plus a few extras. It's in good cosmetic shape and performs great on the bench and in my test system.
The basic C-1 features separate left/right tone controls, phono inputs (moving magnet and moving coil) and of course sonic holography imaging. The BillD upgrade replaces roughly 180 parts. All electrolytic caps are replaced. Op amps in the line and phono stage are replaced with OPA2134 devices. All ceramic caps are replaced with upgraded components. All resistors (outside of the power supply and SH) circuits are replaced with 1% metal film resistors to lower the noise floor. I've also added a removable power cord and moved the internal fuse to the rear panel. And of course, a subtle blue LED to mark this C-1 as special.
Price is $400 plus shipping from 85255. Shipping to USA only.
Send me a PM if you are interested.
Keithley 2015 THD Multimeter
Full function multimeter and THD Analyzer VAC, VDC, Ohms Frequency measurement Integrated signal generator that can be used as a source for THD measurements THD and THD+Noise Analzer Extremely flexible Includes printed and bound manual (you'll need it) It went to CarverFest one year. Some guy with a gold pen scribbled all over it. (I'll scrub it off if you like.) Priced accordingly. Offering it here first to keep it in the family Asking $450 plus shipping from zip 85255. Roughly 15 lbs. Photos show the analyzer monitoring a 1kHz, 500mv signal. THD, ACV and Frequency measurements shown. Calibration status unknown, but it seems to generate sensible measurements.