I bought these in 2005 to build a tube audio stereo system. That system did not get built and now these original A-7s are available. Heathkit amps of the postwar era are beautiful straightforward designs that produce amazingly warm audio. The A-7 uses a 5Y3 rectifier, a 12SN7/12SL7 driver, and 12A6 output tubes. Please review the photos and forward any questions or comments.

Immerse yourself in the world of vintage audio with this Heathkit Vintage Tube Amplifier Model EA-2. Made in the United States and boasting a brand name of SCOTT, this piece of vintage electronics is a true collector’s item. With its powerful and distinct sound quality, it is sure to enhance your audio experience. Ideal for those who appreciate the sound of vinyl records or vintage audio equipment, this amplifier is a must-have for your collection. Please use zoom to inspect all pictures closely for the cosmetic condition. All functions have been tested by a vintage audio technician and everything is working perfectly. Please feel free to contact me if you have any questions. Thank you for taking a look at my listing.

This lot was sourced from a single estate (originally owned by a builder in Salt Lake City, UT) and contains a fantastic mix of high-end vintage audio iron, point-to-point chassis sub-assemblies, and original documentation. This collection is perfect for a tube audio hobbyist, ham radio operator, or vintage hi-fi restorer looking for premium vintage “iron” transformers and period-correct build components. What is Included in this Lot:1. Premium Vintage Transformers & ChassisStromberg-Carlson Power/Output Transformer Block: Features a heavy-duty black potted transformer stamped FCR-105 (Batch #138344) alongside a matching yellow-labeled Stromberg-Carlson component from Rochester, NY. Thordarson Choke: Model T-20C53 (8 Henries, 80 mA, 175 Ohms) mounted internally inside the main heavy-gauge brushed aluminum chassis. Stancor Interstage Transformer: Small vintage silver-cased upgrade transformer mounted on the power supply sub-panel. Multi-Tap Power Transformer: Features a primary winding block labeled with lugs 17 through 21.2. Modular Sub-Assemblies & Components3-Tube Preamplifier / Control Sub-Chassis: A standalone upper deck featuring 3 empty tube sockets (two 9-pin miniature, one octal/power format), a silver multi-section can capacitor, and 3 brass control potentiometers. Point-to-Point Circuitry: The underside of the chassis blocks feature original carbon-comp resistors, ceramic discs, an orange drop film capacitor, and rare vintage Sprague “Black Beauty” / Bumblebee paper-in-oil capacitors. Extra Hardware: Includes an aluminum shield/enclosure box and a loose vintage Mallory Type FP 146 electrolytic capacitor (450V). Original Vintage Heathkit ManualsHeathkit AR-14 Assembly Manual: Original 1960s manual for the Low-Cost Transistor Receiver (features the original owner’s handwritten provenance name/address on the cover). Heathkit AS-133 Manual: Original documentation for the 8 2-Way Coaxial High Fidelity Speaker system, complete with parts pictorial reference sheets.

Vintage Heathkit SB-200 HF linear amplifier for amateur radio operation. Classic tube amplifier utilizing dual 572B tubes (tube presence and condition unknown). Features original green Heathkit cabinet, front panel meter, tune/load controls, and rear RF connections. Popular amplifier among ham radio operators and collectors. Cosmetic wear from age and use as shown. #Heathkit #SB200 #HamRadio #LinearAmplifier #HFRadio #AmateurRadio #VintageElectronics.

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.

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.

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.

Belonged to my uncle who had an antique/vintage radio repair business for over fifty years. He used it to test some of the things he would repair.