These vacuum tube power amplifiers were either built from scratch or rebuilt from the bare chassis with new tube sockets, new capacitors, new resistors, etc. Parts and labor are fully guaranteed for 30 days, and I will repair any unmodified amplifier for the cost of parts for a year. At auction sites you typically see "all of the tubes light up" or "guaranteed against DOA" or "no warranty on 50 year old electronics" or even "untested with no returns". Here, you will get a fully tested and properly functioning amplifier and you will be able to get support from me after the sale.

Quality parts are used throughout, and all amplifiers are electrically grounded with a three wire cord and fused for safety. For the newly constructed amplifiers, I usually use vintage transformers because in many cases their quality is impossible to match with reasonably priced modern transformers. Tubes are typically quality modern production, with a few quality used tubes. All amplifiers come with a complete high-quality tube set.

Each amplifier has been tested for flat frequency response, low harmonic and intermodulation distortion, stability, and noise performance. Hum and noise are inaudible in my test system with bookshelf speakers and a solid state preamplifier. Each amplifier has been tested and listened to in my shop for an extended period. All sound clean and smooth.

I pack **very** carefully using double boxes where necessary and lots of foam padding so your amplifier will arrive safely. None of the amplifiers I've shipped have been damaged because I don't trust to luck.

Inquiries to "d.fabricant" at "comcast.net"

Comments about My Amps

From a discerning customer, Craig, who owns several of my amps: "The amps were meticulously assembled and sound tremendous. They really produce. Packed full of the traditional lush tube sound with singing highs and warm glassy mids, but with a surprisingly tight low end that one would not expect from a tube amp. They arrived quickly inside bomb-proof packing. Thanks for the fantastic monoblocks."

Another customer remarks: "Please feel free to quote me about excellent build quality and craftsmanship. Truly fine. (I am an aviation Inspector with electrical certs.) I have spent many hours now with this amp. I am even more glad that I bought it. Very fine tone and range. Good sound stage. Thank you"

Another customer: "I just got the chance to unpack the Mark III's. What excellent packing!!! ... I'm pleased with their performance. They are quiet through my La Scalas. That's saying quite a bit."

A customer who purchased one of my Eico ST-70 clones raved about the sound and suggested that I put these into production. The only hitch is that I'd go broke.

I am pleased that all of the folks who've purchased my amps have been happy with their purchases. I wouldn't have it any other way.

Monoblock Amplifiers

Really nice pair of Dynaco Mark IIIs, $800 A-431 cloth lead output transformers, new Dynakitparts power transformers, new Dynakitparts 550V filter capacitors. Great sounding VTA 12AT7 driver boards. One amp has EH 6550's, the other EH KT88's. These output tubes look identical to me. These amps produce a clean 55 watts per channel, and the operating voltage is safely below the filter capacitor ratings. Test data amp #1
Test data amp #2

Stereo Amplifiers

I have parts for three amplifiers and will build to suit. Please contact me if you're interested.

(1) Eico HF 86 clone

(2) Eico ST-70 clone

(3) Dynaco ST-70 with upgraded power transformer

Sold Amplifiers

Excellent Dynakit ST-70 $500 VTA all triode driver board, new high-capacity Dynakitparts power transformer, cloth-lead A470 output transformers. Winged C EL34 output tubes.

Very nice Eico HF81 Clone (power amplifier section) $300 SOLD Dual mono construction, EL84 outputs, 14 W per channel, all EICO transformers, 4-8-16 ohm output. Pots are hum balance pots, not volume control.

Beautiful Eico ST70 Clone with Superb Fisher 500C Transformers $400 SOLD 12AX7 input, 6CG7 phase splitters, 7591 outputs, ~25 W per channel. Solid state power supply like Fisher 500C. High gain, will run well without preamp. Test Data

Gorgeous Harman Kardon Citation V clone! $500 SOLD Clean 38 W per channel. Uses GZ-34 tube rectifier and excellent Heathkit AA-100 output transformers. Walnut end panels. My favorite power amp circuit for moderate powers. Test data

Beautiful pair of Fisher 20A's, EL84 outputs! SOLD

Pair of Radio Craftsman C-400 Clones $300 SOLD All octal tubes with 6J5 input, 6SN7 phase splitter and 6V6 outputs. 12 W per channel.

Pair of Radio Craftsman RC-2s (Hammond Output Transformers) $400 SOLD Rebuilt to updated C400 circuit. All octal tubes with 6J5 input, 6SN7 phase splitter and 6V6 outputs. 12 W per channel. Nice amps!

Pair of Fisher 80AZs $900 SOLD 30W each. 6L6GC outputs. Superb output transformers with full power to 20 Hz!

Dynaco ST35 Clone $350 SOLD

Beautiful Pair of Dynaco Mark IIIs $1000 SOLD