Vintage Tube Amp

This product is a bulk lot of vintage RCA vacuum tubes from the 1930s to 1950s, specifically designed for use in radios, TVs, and amplifiers. Made in the United States, these tubes are part of the RCA brand and are ideal for collectors or enthusiasts of vintage audio and video equipment. The lot includes a variety of models and types suitable for different applications within the vintage electronics category.

For sale is this rare vintage Webster Electric Type 81B15 Amplifier from circa 1951. This was checked for basic signs of life using a Variac to help preserve the tubes & capacitors after sitting safely in climate controlled storage for many years. The unit powers on great and the tubes glow healthy although no further testing has been done. An interesting note on this amp, it is covered in porcelain and has chrome plated handles. I happen to have some extra matching tubes for the unit lying around that I will include as well. The cord does have some beginning signs of dry rot but is still functional. If you have any questions please reach out and I will do my best to answer in a timely manner.

Brand new JJ’s tubes installed, nearly flawless. Shows hardly any wear, and works perfectly. Great little tube amp.

Still needs a bit of work. All transformers work as they should.

Listing is for one. Heath Built EUA-19-4 Tube Amplifier Heathkit (NO Tubes). It’s in pretty good shape for the age. There are marks, scuffs, etc. Please look closely at pics for condition. Looks to be all original, except for the missing 12AX7 tubes. See my other listings/reach out for tubes if you’re interested. This is a HeathBuilt, same as HeathKit, but it’s factory built quality (not built by some electronics noob who probably can’t solder, sorry not sorry ;). There are scuffs, scratches, etc. Please see pics for the visual condition. As with any vintage item, please expect there to be wear, scuffs/scratches, odors, discoloration, rust, dust, signs of age, etc. Pics are of actual item(s). Item does not come with anything else, unless noted in description. If this is not acceptable, please send a note with your order, so we know not to upgrade. Please visit my store for more vintage items! Office reference: Item #25-1833.

Heathkit Model A-8A Tube Amplifier with 2 NOS 6L6GC Matching Tubes. Only the A-8A Amplifier and 2 additional Tubes come in this sale.

Console pulled The Fisher 460A vintage EL84 tube amplifier approx late 1950′s or early 1960s (See label and serial number in photos). This amp has been fully restored electronically w/ modern capacitors + modifications to account for fact that stereo tuner is no longer present in the console, thus a bias resistor modification is made to properly bias the tubes (See 20 watt gold power resistor mounted to underside chassis). All capacitors and components are top quality such as Nichicon electrolytic and classic “Orange Drop” coupling caps, etc. The original top-side “MULTI-CAN” large capacitors were left in-place for vintage aesthetics while all new capacitors for the DC tube supply voltages were built into the underside as shown in the photos. New rectifier diodes were also installed as shown. A thermistor was added to the A/C input side to soften start-up current surge to the tubes and also add slight voltage drop to account for higher line voltages in today’s homes. The tubes are (2) Sovtek EL84 + (2) Russian 6P14P (EL84) for the power output + (2) 7247 for input stage : The amp, since it hadn’t been run in a while was “burned in” on the bench for approx 2 hours and ran perfect. I re-checked the bias and supply voltages and everything was in-spec. No hum, no sound issues – it’s running great. I will include a marked-up schematic and an original un-marked schematic to show the modification(s) and resistor values performed and needed to make these Fisher console amps run properly in stand-alone mode as was done to this one. An ON/OFF power switch was added (it appears the green LED light in it is out, but does not affect the power switch function). There is also a custom mesh steel plate bottom w/ plastic feet that was added allowing proper ventilation to keep the tubes running cooler. The bottom plate is steel – I left it un-painted as a new owner may want to paint it a custom color or build a wood case for the amp etc and thus it shows a bit of light surface rust as it’s not coated at this point. This amplifier is intended for a vintage tube amp collector or similar who is fully aware of what they are looking at in the photos and how to safely handle a tube amplifier if they remove the bottom cover etc as dangerous voltages are present.

These parts are salvaged from a chassis. I tried to be careful removing tubes, but working condition unknown. I can’t guarantee the performance of these parts, but it was stored inside. I’m going to list chassis as well.

LARGE LOT NINTY TUBES. POWER OUTPUT AMPLIFIER TUBES. POWER PENTODES ALL 90 TUBES NOS NIB. MADE WITH DOUBLE GETTER BLACK PLATES ONE GETTER SIDE PLATE ONE GETTER TOP OF MICA. VINTAGE TUBES MADE IN THE UNITED STATES. LARGE PILE OF NOS NIB TUBES SAME TYPE. HIGH QIALITY SYLVANIA MADE TUBES FOR TUBE AMPLIFIERS.

The product is a lot of vintage vacuum tubes, specifically designed for guitar amp and organ repair. The vacuum tubes are of military brand, adding to their unique and historical value. These tubes are essential components for maintaining the sound quality and functionality of vintage audio equipment, making them a valuable resource for musicians and audio enthusiasts looking to repair or restore classic instruments. Just so neat that a lot that I have found had been military grade in its usage.