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.

Vintage mid-1950s Heath Company hand-built Heathkit W3M “Williamson Type” mono tube amplifier and companion Heathkit WA-1 Power Supply in good working condition (see video). Appears to all original and unmolested. No hum and very good cosmetic condition for its age. Amazing that these were engineered so well that its working great after 70 years. All vintage tubes made in USA. Acrosound TO-300 “ultra-linear” output transformer. Being so old, it should be checked out by a qualified tech to replace any out of spec or obsolete components. The only issue I noticed was the multi-pin connected cable needs to be manipulated to find a sweet spot to make a connection, so there must a loose or frayed wire in cable end. Nice mono amp for your vinyl audio system or part of a tube stereo set-up. Heathkit W-3M Tube Amplifier & WA-1 Power Supply – YouTube. These are automatically added to the final invoice and I’m not able to delete or adjust them.

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.

Was ready to recap and rework as necessary and come up with nothing, plays great nothing gets hot no hum, all good. This piece is gorgeous. This one has Sylvania 6BQ5s.

The Vintage Heathkit 14w Ea-3 Vacuum Tube Amplifier is a classic piece of audio equipment that harkens back to a bygone era of electronic design. With its iconic Heathkit brand and tube amplifier design, this piece showcases the craftsmanship and attention to detail that vintage electronics are known for. The Heathkit 14w Ea-3 model is a sought-after collector’s item for audio enthusiasts and vintage collectors alike, offering a glimpse into the past of audio technology. Two Ea-3 amps in good working condition and one model Pt-7 receiver in very good condition.

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.

Area 51 is a warehouse discovery at Exit 51 – a meticulously preserved lifetime collection we’re honored to place into collectors’ hands. This is a vintage tube amplifier by Heathkit, identified by the original rear label as Model AA-191. The AA-191 is a low-power (3 watt) mono tube amplifier, commonly used in small hi-fi systems, educational labs, or as a preamp/driver in custom audio builds. The front panel features. Bass control (flat to boost). Treble control (cut to flat). Phono / Tuner input selector. The rear panel includes. Speaker output terminals (4? / 8? / 16?). Tuner and crystal (XTAL) inputs. Headphone (phones) jack. Original Heathkit model and serial label. This unit comes from a large private estate of a meticulous original owner, where electronics were stored indoors as part of a carefully preserved lifetime collection. Untested (no power applied). Metal chassis shows surface wear, scratches, and age-related marks. All control knobs present with wear. Power cord present with age discoloration. Rear label present and legible. Internal components visible through ventilation slots. No testing, cleaning, or servicing performed. Unit stabilized to prevent internal movement. Please review all photos carefully.

Recapped as needed, tubes changed as needed Case very nice as face, knobs good with some coloring on centers. Overall a pretty clean unit, have a nice matched pair on bench now to be offered up shortly.