Vintage Tube Amp

Vintage Dynakit ST-70 Stereo Tube Amp Power Amplifier UNTESTED. Looks complete with all tubes and knobs. Missing the bottom metal plate & cage. Info found on the web. 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. Power output: 35 watts per channel into 8 (stereo). Frequency response: 10Hz to 40kHz. Total harmonic distortion: 1%. Input sensitivity: 1.3V. Signal to noise ratio: 90dB. Speaker load impedance: 4 to 16. Valve complement: 4 x EL34, 2 x 7199, 1 x GZ34. I do not have the proper equipment to test a tube amp and do not want to risk applying power to a 60 year old unit. Previous units that I acquired from the same audiophile collection have proven to be in very good condition. He did not own junk. See pics for details. Will be carefully packed in a sturdy box with ample packaging. On all 6 sides. The Last pictures is an example of how I pack these (with Styrofoam on the top and bottom as well as the sides shown). It is located in Simi Valley, CA. Just 40 miles north of Los Angeles. The item “Vintage Dynakit ST-70 Stereo Tube Amp Power Amplifier UNTESTED” is in sale since Friday, January 8, 2021. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “duneedeals” and is located in Simi Valley, California. This item can be shipped to United States.

• Type: Tube Amplifier
• MPN: ST-70
• Brand: Dynakit
• Featured Refinements: Vintage Stereo Amplifier