Archive for the ‘dynaco’ Category
Dynaco Stereo 80 ST-80 Amplifier TESTED 100% SONICS OUTSTANDING CONDITION L@@K
Thursday, August 22nd, 2024Dynaco Stereo 80 ST-80 Amplifier. Has All 4 Original Feet. Cord Has No Cracks. No Signs Of Corrosion. Lamp On Power Switch Works. Outstanding Condition And Sonics. Please Examine Photos Closely For Cosmetic Condition. Other items From My Collection May Be Viewed In My Listings. A rare piece greatly appreciated by audiophiles and not often seen. A Fantastic Addition To Any Vintage Collection. Power output: 40 watts per channel into 8? (stereo). Frequency response: 10Hz to 50kHz. Total harmonic distortion: 0.5%. Input sensitivity: 1.3V. Signal to noise ratio: 90dB. Speaker load impedance: 4? To 16? Semiconductors: 12 x transistors, 10 x diodes. Dimensions: 14 x 8 x 4 inches. The Dynaco Stereo 80 is an all silicon transistor basic power amplifier for use with separate preamplifiers such as the Dynaco PAT-4 or PAT-5 or for use with tape recorders or tuners such as the Dynaco FM-5 which have their own volume controls. The unit contains two 40 watt amplifiers on one chassis with a common power supply. It has been designed to be used under normal conditions without special safety precautions, just as if it were a high grade tube amplifier. There are no circuit breakers, speaker fuses, or other resettable devices to impede the use of the Stereo 80 under any reasonable conditions of use or abuse. This is achieved by using novel circuits (on which patents are pending) which automatically and instantly protect the amplifier. The components are of the highest quality to protect against failure, both now and for many years in the future. All parts are used conservatively with close tolerances to assure proper operation, and etched circuit modules are pretested under actual use conditions to ensure that every unit, after assembly, will meet the specifications normally associated with laboratory prototypes. The specifications of the Stereo 80 speak for themselves. The distortion at low levels is comparable to that of the finest tube designs, while the high power distortion remains inaudible. See my other auctions for a matching Dynaco PAT-4 Stereo Preamplifier to mate with this. Please check my other auctions for more vintage electronics.
Dynaco Mark VI Vintage Monoblock Tube Amplifier 120W
Tuesday, July 2nd, 2024If you are like me, you like to see what you are getting, so I took lots of pics. Check out my other cool listings! My other job is pastoring a Church in Florida. I’m not some large corporation, just a regular guy making his way for his family. I scour estate sales, garages, attics and anywhere to find many unique and rare items. Virtually everything I sell is previously owned, so I understand that sometimes problems may arise. Please do not open a case. Your satisfaction is important to me. The stars count, too. If there is a problem, please message me. I can usually accommodate when requested. 1.16.23– 4.7.23 — 5.4.23-8.8.23–9.23– 7.1.24.
Dynaco Mark III Amplifier Dynakit Vintage High-Fidelity KT88 Tube Amp Tested
Monday, March 4th, 2024Vintage Dynaco Dynakit Mark III KT88 Stereo Amplifier. This amplifier has been tested and serviced and is in good working condition. Has a set of Svetlana Power Tubes, one is labeled McIntosh and the other straight Svetlana. The 5AR4 Rectifier is an American Made Westinghouse, and the 6AN8 is a Sylvania. True Dynaco Dynakit MK III Monoblock manufactured in Philadelphia. One of the most highly regarded vintage audio tube amplifiers ever built.
Dynaco ST-70 Tube Amplifier Working good condition
Wednesday, January 31st, 2024Dynaco ST-70 Tube Amplifier – Working – good condition. Please see the detailed photos for more on condition. Guaranteed to be as described. A picture is worth a thousand words, and I always picture the actual item(s) for sale, so please look carefully at the accompanying photo(s). What you see in the photos is what you get.
Dynaco SCA-35 Stereo Amplifier Tube Amp Chassis Case for Restoration or Rebuild
Thursday, November 30th, 2023For restoration or reconstruction, what you will get is exactly the pieces you see in the images.
Dynaco ST-70 Tube Amplifier Modified with New Genalex Gold Lion KT77 Tubes
Wednesday, November 29th, 2023Dynaco Dynakit Stereo 70. The price includes the Genalex tubes. I’ll negotiate more if the tubes are removed. Therefore, the connection of a loudspeaker to the amplifier does not deteriorate its performance or listening quality.
Dynaco St 70 Tube Stereo Audio Amplifier Bad Ac Hum In Both Channels What Is Causing The Fault
Sunday, July 2nd, 2023Dynaco Mark VI Vintage Monoblock Tube Amplifier 120W
Monday, March 27th, 2023If you are like me, you like to see what you are getting, so I took lots of pics. Check out my other cool listings! My other job is pastoring a Church in Florida. I’m not some large corporation, just a regular guy making his way for his family. I scour estate sales, garages, attics and anywhere to find many unique and rare items. Virtually everything I sell is previously owned, so I understand that sometimes problems may arise. Please do not open a case. Your satisfaction is important to me. The stars count, too. If there is a problem, please message me. I can usually accommodate when requested. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “revjoanna” and is located in this country: US. This item can be shipped to United States, Denmark, Ireland, Netherlands, Slovakia, Slovenia, Lithuania, Portugal, Malta, United Kingdom, Cyprus, Australia, Austria, Hungary, Sweden, Spain, Estonia, Belgium, Finland, Bulgaria, Poland, Luxembourg, Czech Republic, Canada, France, Germany, Latvia, Italy, Greece, Romania.
- Brand: Dynaco
- Type: Tube Amplifier
- Model: Mark VI
- Country/Region of Manufacture: United States
Dynaco Dynakit Stereo 70 ST-70 Vintage Tube Amplifier Serviced
Sunday, January 22nd, 2023Dynaco (Dynakit) Stereo 70 (ST-70). Vintage Stereo tube amplifier. Serviced: cleaned and vacuumed chassis, cleaned all controls and switches, and jacks. Tested all tube outputs. Installed replacement 7199 tube. Replaced fuse, connection at fuse holder and set bias. The Dynakit Stereo 70 is a complete dual 35 watt power amplifier kit which offers the highest possible fidelity, at low cost and in a compact arrangement. It uses a patented circuit of outstanding performance characteristics, along with top quality parts, including the new Dynaco Super-Fidelity A-470 transformers – the finest available. The measured specifications show that the Stereo 70 is an amplifier of unequalled performance, and its listening quality is also unrivalled by any regardless of price. The two non-interacting 35 watt channels provide adequate power, in a stereophonic or two channel system, for loudspeakers of any level of efficiency. The channels can be paralleled for a full 70 watts of low distortion output, suitable for practically any monophonic use even where several loudspeakers are in use in different areas. The high power capability and low internal impedance provide excellent damping for all types of high quality speaker systems without need to make adjustments to match specific speaker installations. The design features of your Dynakit which contribute to its superior listening quality include some which are not revealed by the customary steady-state laboratory measurements. For example, it does not exhibit bounce and flutter when pulsed with a transient signal. Thus a sharp percussive signal like a drum beat or a piano note will be reproduced with sharpness and clarity and neither overhang nor muddiness. The Stereo 70, unlike many other amplifier circuits, has been designed to provide its specified performance on a loudspeaker load, not just under laboratory measuring conditions. Therefore, the connection of a loudspeaker to the amplifier does not deteriorate its performance or listening quality. AS-IS sale due to age. This item is in the category “Consumer Electronics\TV, Video & Home Audio\Home Audio\Receivers & Amplifiers\Amplifiers & Preamps”. The seller is “infinityrecordsusa” and is located in this country: US. This item can be shipped worldwide.
- Brand: Dynaco
- Type: Power Amplifier
- Model: ST-70