Vintage Tube Amp

35 Watt Mic Mixer. You are looking at a nice estate find, as found and for sale here. Used, dusty, dirty and needs cleaning. Tested to power up, input an aux signal and produced output to speaker. There is a hum present out the test speaker, I’m not a tech but told it may be just a ground issue with incompatible equipment or wiring. View video below for video of testing. Look at pics close, and decide for yourself. Or if not, shoot me a respectable offer with the make offer button! … I’m fair, and have no idea the value of these but gotta start somewhere. I offer no guarantees on items, just like a yard sale… Take it as it is. Ask questions if needed before sale… Make all reasonable offers, worth is subjective. Measurements shown, if in pics. Will be packaged securely and safely… Check out my other items. Be sure to add me to your favorites list. This item is part of an estate liquidation sale. All efforts will be made to disclose defects, with pictures and observations, however, please consider we are not experts and may not catch everything. We do not clean or refurbish any of our items due to the many differences of opinion on cleaning techniques, or original state items, and the sheer volume of items we process. All our items come from many different uncontrollable environments, and may have stains and odors… I can’t smell very good after decades of exposure to many different odors. The free listing tool.

Vintage RARE 1940 RCA model MI-122214 11-Tube Audio Amplifier. 4 Inputs: 2 Microphone and 2 Phono. 275W draw, 50W output. All tubes test as working except for a 6L6 with a cath short. Tube set included: 3X 6J7, 2X 6C5, 4X 6L6, 2X 5U4. Untested beyond that, most likely will require a full racap.

Untested as found at a local estate, offered as is for parts or restoration. Tubes are visible inside the unit. Unit advises not to open, we are offering it as is.

Harman Kardon Allegro A10 Tube Amp Audio Amplifier Mono. The Harman Kardon Model A-10 Allegro is an AC operated 5 Tube 3 Channel Audio Amplifier. Untested, assume not working. Need additional tubes to run it. Power type and voltage. Alternating Current supply (AC) / 105 – 125 Volt. This model requires external speaker(s). 10 W 16 W max. 12 x 4 x 6 inch / 305 x 102 x 152 mm. Thanks for considering?? Be sure to check out our other vintage electronics for sale!

This mono block was pulled from a console cabinet stereo. It needs to be gone through… I’m pretty sure it came from a telefunken… There’s a chance it could have came from a grundig or something else german.

All our tubes have been tested for. GAS SHORTS TRANSCONDUCTANCE & EMISSIONS. These tubes have been tested – and are considered NOS ; they meet or exceed the published data set for GM. NOS tubes fall within the Gm characteristic range of an average tube, as published in the RCA RECEIVING TUBE MANUAL, which states Individual tubes, like any manufactured product, may have characteristics that range above or below the values given. Test Results are ALWAYS available upon request (if not photographed). Send me a message! I might have what you need! Tubes will be packaged in white boxes – if the original boxes are not photographed in the listing or stated as “with original box” they are not included. 90 % of our tubes are Tv7 tested, our tv7 is Calibrated and our go to tester. The tv7 tester has been around a long time and is a trusted tester for military, who had high standards for reliable tubes that would not fail in critical conditions. Military standards were tubes needed to meet 60/65% which they established as (minimum value). There isn’t a “specific” indicator or result or data set anywhere that universally designates a vacuum tube as “new old stock” when using a tester nor for what test result is given. The best way is to calculate the GM – and check the data sheet for each tube – a “nos”tube should typically measure between the average and maximum micromhos(GM). A common misconception of tube testing is that every unused tube, new or vintage, should test at 100% of the meter scale of the tester. A tube was considered acceptable/new/ passed standards if it tested between the specified minimum and maximum on a tube data sheet or the minimum value specified on the tester (tv7 is minimum is 65%). Tubes do not give the same reading across testsrs – even the same model tester will give a different reading sometimes. If you don’t like the sound of a tube, so long as it is still in the same condition as arrived message me. I DO NOT OFFER A TUBE ROLLING SERVICE, vintage audio tubes typically require a burn in period, that’s where the tube sounds the best. Please see my notes on noise tests below. We have a few different testers available to ensure the quality of the tube (as some tubes can not be tested on the tv7). Tv7 testing is tedious and I spend hours testing tubes and double testing tubes – if you notice a mistake(like a picture doesn’t match the title) please be gracious and let me know. UNLESS PHOTOGRAPHED WITH THE ORIGINAL BOX- tube will come in repackaged white boxes- 50-90 year old cardboard packaging doesn’t hold together well, not in my hands anyways. We have over the last 20 years amassed a huge collection of vintage amps/ parts / tubes and have decided to downsize that collection. Every tube has been marked for tracking and security purposes – these marks wipe off easily and without the mark no return will be accepted. Sound quality is tremendously SUBJECTIVE. Tube tester NOISE TEST. This is a very marginal test, only for special checking. This test needs sound amplification; hearing / listening to noise with headphones would indicate a real disaster inside a tube (THE shorts test WOULD already BE evidence OF THIS). There is nothing wrong with performing that noise test however. That test is not going to tell you whether the tube will be silent in your SET (single ended triode) amp or in anything else. Ultimately, the best way of testing a tube for microphonics is in an actual chassis or amplifier similar to one in which it is intended to be used. Since amps have a wide variety of circuit designs and tube placement, this test is most effective in YOUR AMP or one that is almost identical. Hence, most people advertising tubes as tested for Noise or Microphonics are probably NOT testing them in any meaningful way FOR YOU OR YOUR AMP. “Noise” and “Microphonics” are often buzzwords for other issues. There is a small percentage of tubes that have a problem with noise but far less than most people think. In properly designed circuits objectionable “tube noise” is seldom found. In other words, it is a rare tube that will be noisy when used in most circuits. Always check the data sheet of the tube you plan to use. PLEASE message me BEFORE you open a return. PLEASE NOTE: Tube silkscreen (lettering on the tubes) is VERY fragile. It can be wiped off and destroyed VERY easily.

BEAUTIFUL CHALLENGER CHA33 AUDIO TUBE AMPLIFIER. This amp appears to be all original and should be rebuilt prior to use.

A vintage Allied Knight mono tube audio amplifier is. A single-channel amplifier from the Allied Radio Corporation, known for its use of vacuum tubes (also called “valves”) for amplification, popularized in the mid-20th century, and characterized by a warm, rich sound often associated with classic audio equipment. Notable features include its simple design, often with a single power tube, and a focus on quality sound.

1kg Telefunken 1mm solder West german 195o vintage solder audio. We received some coils from closed radio store in munich. Vintage 1950 vintage german solder, made by Telefunken in WEST-GERMANY. What you see on my pictures is 100% what you will get! Total weight = 1kg. 1mm diameter size of the conductor. See my pictures, pl. Rare perfect match to restore original vintage gear from that time. Get Supersized Images & Free Image Hosting. Create your brand with Auctiva’s. Attention Sellers – Get Templates Image Hosting, Scheduling at Auctiva. Com. Track Page Views With.

For sale is a very scarce “ASTRONIC” Associated Electronic Engineers Ltd. PP KT66 monoblock amplifier, Model A1254C. This was UK made in 1954 and has an output of 12-15 watts. The 1254C was designed to mate with the 1280H tone control unit/preamp. Surprisingly, both have stayed together all of these years. Condition is as you see it in the photographs. Both units are in decent physical condition for their age with some small dents in transformer cover. Both of the front panels look like they illumiate. The clear panels need to be wiped down, front and back. No cracks or scratches. There are no signs of obvious electrical failure in either unit. They are massive for the tube layout and extremely well made, as is the entire system.