Excellent Condition Audio Research PH3-SE. Not a scratch or mark on it anywhere. Item is as new and sounds great. Just sold my turntable and all my records so this is next. Selling the rest of my stuff soon as well. They stopped making this unit in 2004. I'm the second owner and I bought it in 2009. Almost no use since I bought it as my wife had other plans.
Here is some info:
I have the original box with spare tube damping rings. The manual is available on line here: http://www.audioresearch.com/ContentsFiles%5CPH3%20manual.pdf
Writeup from Audio Research:
It is fully single-ended design from input to output, the PH3 uses a combination of J-FET input stage technology (for low inherent circuit noise) and class A operation vacuum-tube gain via three 6922 twin triodes. Total gain of the PH3 is 54 dB (non-adjustable). Used with typical line preamplifiers having 12 to 18 dB of gain, the PH3 is suitable for phono cartridges having .25 mV output or higher. Input impedance is factory-set at 47K ohms, and input capacitance at 90 pF. For optimal matching to moving-coil and moving-magnet phono cartridges, both input impedance and input capacitance may be adjusted via simple resistor and capacitor changes.
This higher-cost PH3 Special Edition is identical in circuit design to the standard PH3 phono preamplifier, with the exception that more than 100 different parts upgrades have been made to the SE version, including costly Infinicaps in both audio circuits and power supply regulators, high-performance soft-recovery rectifiers, Holco resistors in key locations, gold tube sockets, proprietary Audio Research damping rings, extended chassis damping, and more. The sonic improvements are significant in every respect, yielding better sound stage focus, more musical bloom and richness, greater dynamic expression and more impact and control at the frequency extremes.