FS: Stereo single ended 45 amplifier

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ultrafi

FS: Stereo single ended 45 amplifier
« on: 25 Apr 2011, 07:27 pm »
Full warranty of 3 years applies (not including tubes).  Following is a brief description:

INPUT STAGE

One of 12B4 (a pair of NOS 12B4As are included) or 12A4 plate loaded using wirewound resistors and carbon composition for the cathode (bypassed) and grid.  The tube selection allows for adjust of the gain structure in one’s system.  The input stage is capacitively coupled to the output stage using Mundorf silver foil in oil capacitors, arguably the best coupling capacitor in the World.  An additional feature is the ability to selected shared cathodes using a miniature switch located on the top panel.  Sharing cathodes adds additional focus to the center image in many systems.

OUTPUT STAGE

45 (A pair of NOS RCA 45s are included), 2A3, or triode wired 46 or 47 using included socket adapters, self or cathode bias using 50 watt wirewound non-inductive 1% precision resistors, bypass are Panasonic TSHAs.  The output transformers are the highly acclaimed James units.

POWER SUPPLIES
Separate filament transformers for each output tube with precision 10-turn wirewound hum balance pots for dead quiet operation.  Massively over specified toroidal transformer with double LC filtration for the B+ power supply.

PHYSICAL

Cardas Rhodium RCA input jacks with copper based Vampire speaker binding posts.  Schurter Power switch and integrated IEC AC power inlet.  All ceramic tube sockets used throughout.  Beautiful Corian solid surface side panels (the picture don’t do them justice) for a non-resonant chassis with anodized CNC machined top, front, back and bottom panels, constructed using stainless steel hardware fasteners though out.  Point-to-point construction.

Asking $2500 plus shipping.

For additional questions, please call 513 697-1187.







ultrafi

Re: FS: Stereo single ended 45 amplifier
« Reply #1 on: 27 Apr 2011, 06:04 pm »
OK, price reduction - $2000.

ultrafi

Re: FS: Stereo single ended 45 amplifier
« Reply #2 on: 3 May 2011, 04:40 pm »
OK, $1500 and shipping - buyer pays paypal fee.

morganc

Re: FS: Stereo single ended 45 amplifier
« Reply #3 on: 3 May 2011, 11:27 pm »
PM Sent