Hi Dynaco fans,
I have three fine Dynaco amps for sale, at three power levels: 17 Watts, 34 Watts, and 60 Watts per channel. I am now concentrating on my completely custom built amps. These amps all come with complete test reports, a rare item even with new tube amplifiers. I am hard to please, and don't quit until my amps meet my high standards.
I have a fine pair of Mark IIIs for sale, recent build with quality vintage transformers, and modern, neat wiring. These offer the best of the old and the new with excellent original A431 and P782 cloth lead transformers, new stainless steel chassis, excellent Triode driver boards, separate bias adjustments for both output tubes, and SDS cap boards rated at over 600V. These Mark IIIs produce an honest 60 W RMS each with the included EH 6550 output tubes. The Triode drive boards have a cascode input followed by a long tail pair phase inverter, as used on some of the very best vintage amps like the Grommes 260. Refinished cages included. You would be hard pressed to find a nicer pair of Mark IIIs. These amps have impressive power across the audio spectrum. Photos at
http://danielfabricant.com/page_4.html including a full test report for each amp with contact details. $1100 + shipping, mainland US 48 states only.
I also have an excellent ST-70 for sale, recent build with vintage outputs, choke, chassis, and cage; the rest is new. The chassis is an original steel chassis with minor haze and pitting. I started by cleaning the chassis carefully and then protected it with clear Krylon. I resprayed the bottom cover and cage black, and it looks rather good to me. All wiring is modern and neat. This amp has the original A470 cloth lead output transformers but a new Dynakitparts power transformer, a new VTA driver board, and quality Winged C output tubes. The GZ34 power supply uses a CE 40-80-30-20 capacitor supplemented with a 220 uF cap following the choke, for a total of 320 uF filtering the output center tap B+. The added capacitance tightens the transient response, but its placement after the choke prevents damage to the GZ34. It would be tough to beat the electronics in this amp on a stock chassis. Photos at
http://danielfabricant.com/page_4.html including a full test report. $500 + shipping, mainland US 48 states only.
In addition, I have an unusual ST-35 clone for sale. Recent build with the original Z565 outputs (8+16 ohms), but a huge modern power transformer and GZ34 tube rectification with a choke filter like an ST-70, and beefy caps. The amp is nicely built on an 8 by 12 inch Hammond aluminum chassis with IEC power connector, clean layout. This is very powerful and clean and will outperform stock ST-35s easily. Comes with a bottom cover with screened insert for ventilation. Photos at
http://danielfabricant.com/page_4.html including a full test report. $350 + shipping, mainland US 48 states only.
Dan