Unit powers on condition is unknown – I do not have the equipment or knowledge to fully test it safely. Cosmetically it shows normal wear from age and use including scratches, marks, dust, and handwritten markings around knobs. Interior appears largely complete from what I can see in the chassis. Please review all photos carefully for condition and completeness. Features dual meters, large tuning knobs, and original Heathkit styling. Great candidate for restoration, ham radio project, or parts donor.
[What You'll Receive] You will receive the item exactly as pictured and described in the title if there is no special instructions. [Physical Condition] Not sure if some chips are missing. We encourage you to thoroughly examine all the provided pictures. [Working Condition] I plugged in, nothing happened. The item is in non working order. Please be aware that certain details in the “item specifics” section may be automatically generated by the market, and we cannot guarantee their accuracy. Buyers must create waybills and send them to us. Please make timely payments to avoid automatic unpaid strikes from the market. Please select the correct reason for your return. Please respond promptly to emails or calls from the courier to avoid return refusal. If cables, adapters, or other accessories/parts are not mentioned in the description or shown in the pictures, they may not be included. We specialize in hardware sales, and if software, user information, passwords, or licenses are not provided in listing, it means these may not be included. We always strive to respond to your inquiries within 0-48 hours. SF03-SKU: # 19-bottom Audio box.
Heathkit AA-21D Stereo Germanium Solid-State Amplifier – Fully Restored, Excellent Working Condition. This Heathkit AA-21D stereo germanium solid-state amplifier is an increasingly rare piece of vintage audio history-especially in this condition. A great opportunity to add a properly restored classic to a serious vintage audio collection. The amplifier has been completely restored internally and is in 100% working order. All electrolytic capacitors replaced with modern, high-quality audio-grade units. All carbon composition resistors replaced with modern metal-film resistors. Output power transistors replaced with a matched set of New Old Stock (NOS) germanium devices. Original germanium transistors are now quite rare and often noisy; this matched set performs exceptionally well. Original power cord replaced with a modern 3-prong grounded cord for improved safety. Current limiter installed to reduce wear on the main power switch. Dial and indicator lamps replaced. All controls, switches, and potentiometers cleaned for quiet, noise-free operation. The unit has been thoroughly cleaned but does show honest signs of age. Cabinet is structurally solid. Scratches and visible cosmetic wear are present (please see photos for details). Printed copy of the schematic included. Tested for approximately 2 hours paired with AR-3a speakers. Please feel free to reach out with any questions or to request additional photos.
There is just one tube included a 5R4 rectifier. Just acquired a massive lot of gear, will not be spending time per unit to acquire parts/tubes and/or have serviced. May work amazing, may need parts, service, repair, restoration, calibration etc. Will be packed well, but will be expensive.
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.
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.
