Vintage Tube Amp

Item has been tested for power only. Unsure if this unit is fully functional. See photos for detail and condition. Always open to offers. All items are in used condition, unless otherwise noted. Item may have normal use wear. Any other defects that we don’t feel fall under “normal use” will be noted in the description. Only items in images are included with this item. Stands, rulers, or items used as props are not included. Batteries are not included unless otherwise noted (or we forget to take them out of the item after testing). We will not respond to messages asking for our lowest price. Please be aware that many of the items listed are from estate sales or auctions. Therefore, the item may have come from pet friendly home or may smell of smoke. We do out absolute best to neutralize any odor the item may have and if we are unable, we will do our best to note it in the description. Some of our items may have been in an attic / barn / or basement for many years and may have dust or dirt on or in them.

Heathkit Model AA-32 Stereo Hi-Fi Amplifier. Corrosion and rust on the inside. Some paint chips on the outside case. Unit was powered on briefly and the power light came on and then went out. No other testing has been done. For Parts or Repair Only. Daystrom Tubes made by Mullard in Great Britain. Some of the tubes are kind of loose in their sockets. I have a few other vintage Heathkit items available so check out my other listings.

Vintage Heathkit AA-40 tube stereo power amplifier. Powers on but HAS NOT BEEN TESTED. The mono-stereo switch is missing the knob. The switch is still present and switches between mono-stero fine.

This item is in good condition. It was power tested. I can see some tubes glowing. Thats all the testing that was done.

Unknown Vintage Tube Amplifier Heathkit? I don’t know who made this amp but it powers on and seems to work. As it heats up it has a smell to it. I know it’s better to slowly bring up tube amps so you don’t fry them so I just powered it on for about a minute to test it out. See pics and video demo. The volume and tone controls seem to work and on the the back the ohms are label on the speaker outputs. I only tested the “Tuner” input on the back.

Being an electronics tech, I see voltages that are way too high for the designed circuit. Nice looking bucking transformer with stainless cover! Turns device and your equipment on or off. You have a choice of 3% or 7% voltage drop. All vintage tube equipment should be using this voltage reducer. Read on; After WWll and up until 1968, household voltages were 117 volts. Typically voltages these days range from 120-125. Your vintage audio equipment was designed to operate around lower voltages of years ago. You might ask yourself what is a few extra volts? Take into account that the power supply in your vintage device is multiplying those few extra volts many times so that the end result could be 20-30-40 volts more than the circuit was designed for. This could lead to transformer failure, component failure and shorter tube life. As you can see in the photo, the voltage reducer brought the line voltage down from 124 to 116. This is approximately a 7% drop. Simply plug your vintage electronics into the reducer outlet. Will work with equipment drawing up to a total of 4 amps. Has protective 4 amp fusing. Metal box is grounded through heavy duty 3 wire power cord. As an example; Photo shows voltage of Dynaco ST-70 at 467v on todays line voltage and then 438v plugged into the voltage reducer. The correct voltage for this Dynaco amp calls for 435v at this point. Also your filament voltage will be more in line with what it should be. All other voltages are much closer to Dynaco factory specifications with the reducer. Your device will run cooler and safer, extending component, transformer and tube life! Please state voltage drop preference when ordering. Strongly recommended for Dynaco St 70, since they were produced with power transformers designed to operate with 117 line voltage. Your transformer will run cooler, tubes will last longer and all voltages will be closer to where they should be!

VINTAGE HEATHKIT W7-M AMP. APPEARS IN GOOD CONDITION. POWERS ON IT APPEARS. NO MEANS TO TEST FURTHER.

Amplifier looks to be in great physical condition. When turned on the tubes do appear to come on. That as far as it has been tested. The back plastic feet are broken off as shown.

That’s the only testing that was done. There is a cord coming out of the volume that must of been an extension for the volume that is cut.

This was pulled from an estate. The unit has not been fully tested for all functions but appears to be in functional condition. This vintage Heathkit AA-151 tube integrated amplifier is a true gem for any audio enthusiast. Made in the United States, this amplifier boasts a robust and timeless design that will complement any audio setup. The Heathkit brand is well-known for their high-quality audio equipment, and this amplifier is no exception. With its sleek and compact design, this amplifier is perfect for any music lover who wants to experience high-quality audio without sacrificing style. The model features a powerful tube amplifier that delivers rich and warm sound, making it perfect for any music genre. The amplifier also includes a variety of inputs, allowing you to connect multiple audio sources. If you’re a vintage audio enthusiast, this Heathkit AA-151 tube integrated amplifier is a must-have for your collection.