Exceptional Pair Of Dynaco Dynakit Mkiii Tube Power Amplifiers For Sale

EXCEPTIONAL PAIR OF DYNACO DYNAKIT MKIII TUBE POWER AMPLIFIERS
DUE TO TOO CHRONIC NON-PAYING offerS, NO MORE offerS ACCEPTED FROM BRAZIL & VIETNAM.Stunning looking and completely restored pair of Dynaco MK III power amps (aka mono blocks). (new 550v/600v filter can caps, paper in oil & polypropylene coupling caps, selenium rectifiers replaced with safe diodes, small value caps are silver micas, bias electrolytic are Sprague atom, new on/off switches, new NOS RCA jacks. etc. etc. Biases right on specs. All components were removed, chages, bottom plates, transformer bells, and cages professionally powder coated a satin black. Brand new bare black circuit boards were used but 100% original circuitry (no "mod ). This is restored to what dyna's people intended.

Tubes are -- Two brand new Sovtek 5Ar4/GZ 34, brand new factory matched quad of Elerectro Harmonix 6550, out-of-the box NOS vintage RCA 6AN8s.Bottom plates are included as well as cages. See pictures for details.
Will be packed in two individual boxes. Too heavy to ship in one box. International shipping costs are listed below.here are the specs found on Greg Dunn's excellent Dyna website:Description:
The Mark III uses a novel and simple circuit. A pentode voltage amplifier, with parameters adjusted for minimum distortion, is directly coupled to a cathodyne phase inverter. High frequency compensation is employed in a capacitive response loop, which corrects the inherent unbalance of this type of phase inverter. The inverter drives the output tubes which are operated with fixed bias. The connection of the output tubes includes a small percentage of screen loading which improves the regulation of the stage and makes it comparatively uncritical of load impedance. The impedance match and bias conditions utilized in the output stage provide minimum distortion operation over a very wide dynamic range. In addition, 20 dB of negative response lowers the distortion to an unmeasurable proportion at normal listening levels and to less than 1% IM at 60 watts output.
Phase compensation at both high and low frequencies is incorporated into the circuit arrangement to provide a wide margin of stability and to make construction uncritical. This feature of the design means that there is no tendency toward motorboating or oscillation under and conditions of use.
Specifications:
Power Output: 60 watts continuous(rms).
Intermodulation Distortion: Less than 1% at 60 watts; less than .5% below 50 watts. These figures apply for any conventional combination of test frequencies.
Response:
±.5 dB 6 cps to over 60 kc.
±.1 dB 20 cps to 20 kc at any level between 1 mw and 60 watts.
Power Response: 20 cps to 20,000 cps within 1 dB of 60 watts without exceeding 1% harmonic distortion over this range.
Square Wave Response: Essentially undistorted 20 cps to 20,000 cps on loudspeaker load.
Input Impedance: 500,000 ohms.
Sensitivity: 1.6 volts rms input for 60 watts output.
Hum and Noise: Better than 90 dB below rated output.
Damping Factor: 15.
Output Impedances: 8, and 16 ohms
Tubes: KT-88 (2)[early] / 6550 (2)[late], 6AN8, GZ-34.
Size: 9" by 9" by 6-3/4" high.WORLDWIDE SHIPPING
SHIPPING CHARGES:
CANADA - $175
WESTERN EUROPE: $240
RUSSIA: $305
JAPAN, HONG KONG, CHINA: $290
SINGAPORE, THAILAND, AUSTRALIA: $395 _gsrx_vers_524 (GS 6.6.4 (524))
Exceptional Pair Of Dynaco Dynakit Mkiii Tube Power Amplifiers

This item has been shown 0 times.

Buy Now

Exceptional Pair Of Dynaco Dynakit Mkiii Tube Power Amplifiers:
$870




Denon Pma 501 Integrated Amplifier And Tu 501 Tuner  picture
Denon Pma 501 Integrated Amplifier And Tu 501 Tuner


Vintage Cunningham Cx345 45 Antique Radio Audio Amplifier Tube Pr picture
Vintage Cunningham Cx345 45 Antique Radio Audio Amplifier Tube Pr


*** Vintage Jbl Model Sa660 Solid State Amplifier *** picture
*** Vintage Jbl Model Sa660 Solid State Amplifier ***


Be11-fle Sansui A1960ul Bando Transformer Bd21a4-0005 picture
Be11-fle Sansui A1960ul Bando Transformer Bd21a4-0005


Vintage Rca Transistor Mono Tube Power Amp Amplifier Model Saph-020  picture
Vintage Rca Transistor Mono Tube Power Amp Amplifier Model Saph-020


Hafler Dh220  High End Audiophile Upgrade Kit Toshiba Jfet Cascode Topology   picture
Hafler Dh220 High End Audiophile Upgrade Kit Toshiba Jfet Cascode Topology


Vintage Rotel Ra-1412 Stereo Integrated Amplifier 110 Watts W/ Original Manual picture
Vintage Rotel Ra-1412 Stereo Integrated Amplifier 110 Watts W/ Original Manual


Vintage Heathkit Solid State Integrated Amp Aa-1515  picture
Vintage Heathkit Solid State Integrated Amp Aa-1515


Accuphase E-202 Integrated Amplifier Kensonic Laboratory Vintage W/ Original Box picture
Accuphase E-202 Integrated Amplifier Kensonic Laboratory Vintage W/ Original Box


Bell Sound Systems  Model 2195  6v6gt Tube Power Amplifier picture
Bell Sound Systems Model 2195 6v6gt Tube Power Amplifier