In original Found condition. Powered on and fired right up and sounds great! Some scratchyness in the pots but easily cleaned up. This amp has NOT been serviced – Just dusted off an tested. The power cord is fraying and should be replaced for safety. Has the original Genelex GEC KT88 1970s power tubes.
EICO HF-20 VINTAGE TUBE AUDIO AMPLIFIER – SERVICED – CLEANED – TESTED. THIS VINTAGE TUBE AMPLIFIER WORKS GREAT AND IS IN EXCELLENT CONDITION INSIDE AND OUT, ESPECIALLY FOR IT’S AGE. WE REPLACED MANY DEFECTIVE CAPACITORS AND OTHER DEFECTIVE COMPONENTS. REPAIRED ALL POOR SOLDER CONNECTIONS. CLEANED ALL CONTROLS AND SWITCHES. WE HAVE BEEN IN BUSINESS FOR OVER 60 YEARS REPAIRING VINTAGE AUDIO EQUIPMENT.
Vintage Dynaco A-430 Output Transformer – Dynakit Mark II. Original vintage Dynaco A-430 ultralinear output transformer, used in the Dynakit Mark II 50-watt monoblock tube amplifier. Primary impedance: 4,300 ohms center-tapped. Primary winding with ultralinear screen-grid taps. Secondary outputs: 8 and 16 ohms. Designed for push-pull tube amplifier applications. The transformer was tested using a digital multimeter. All primary and secondary winding connections showed continuity, and no unwanted continuity was detected between the windings or to the metal frame. Primary DC Resistance Measurements. Red to Blue: 66.4? Red to Blue/White: 79.5? Red to Green: 22.3? Red to Green/White: 26.6? Green to Blue: 44.1? Green/White to Blue/White: 52.9? Blue to Blue/White: 146? Secondary DC Resistance Measurements. Black to Orange: 0.4? Black to Yellow: 0.5? Orange to Yellow: 0.2? Primary to secondary: OL. Primary to metal frame: OL. Secondary to metal frame: OL. All readings are actual measurements taken from this transformer. These are DC resistance and continuity checks only. The transformer has not been tested in an operating amplifier or under full operating voltage. Good overall vintage condition with normal age-related paint scratches, finish wear, and minor surface oxidation. The original cloth-covered leads are present and show age-related discoloration and wear. Some lead ends have fraying. Please examine all photographs carefully for the exact condition and components included. Condition: Used vintage component, DC resistance/continuity tested only. Full operating performance has not been verified.
Vintage Heathkit Hi-Fi Speaker System with Jensen Drivers – Tested & Working. Very cool original Heathkit speaker system dating from the late 1950s. The cabinet retains its original Heathkit script badge and appears to remain largely original internally. The speaker has been opened and inspected. It contains a Jensen 12 woofer and Jensen HF-106 high-frequency driver, along with the original-style crossover components and rear-mounted high-frequency level control. 220 = Jensen Manufacturing Co. Manufactured 52nd week of 1957. Jensen HF-106 High-Frequency Driver. Manufactured 31st week of 1957. The speaker has been tested and both drivers are working. The rear high-frequency control was cleaned with DeoxIT and is functioning properly. Sound is quite good considering the age of the system. Please keep in mind that this is a late-1950s high-fidelity speaker design and should not be expected to produce the deep bass or high output of a modern loudspeaker. The cabinet shows normal cosmetic wear consistent with its age. Please examine all photos carefully for the exact cosmetic condition. The internal components have been left intact; no attempt has been made to modernize or recap the crossover. A very nice survivor for a vintage Heathkit/Jensen system, early hi-fi collection, tube amplifier setup, or restoration project. Unit is 23″w x 12″d x 11.5h.
Please review all photos closely – they’re considered part of this listing’s description. Brand: Sherwood Electronic Laboratories, Inc. Model: S-1000 II Amplifier (mono integrated tube amp). Serial Number: 6488. Power: 110-120V, 60 Hz, rated 105W. Country of Manufacture: Made in USA. Controls: Selector (Phono A/B/C, Presence, Tape, Scratch Filter, Rumble Filter, Phono Level), Equalization (AES/RIAA/Lon/LP/Ewr/Tape/Mic), Bass, Treble, Loudness (with Loudness In/Out switch), Tape Monitor (Norm/Mon). Output taps: 4 / 8 / 16 ohm speaker terminals. Includes: Amplifier unit only. CONDITION – Untested (Not Powered), Tubes Individually Verified. Tubes were pulled and bench-tested on a Sencore TC142 tube checker: 6L6 tests at 85% emission (GOOD range); 12AX7 tests at 100% emission (GOOD range) – this confirms the tubes themselves are healthy, but does NOT confirm the amplifier circuit, transformers, or capacitors function correctly. Top panel shows significant cosmetic damage: multiple names/initials scratched into the metal finish, plus general scuffing and scratching across the top surface – see photos closely, this is more than typical surface wear. Control knobs show grime/wear consistent with age; front panel lettering and chrome trim otherwise legible and intact. Not inspected for capacitor condition, cord integrity, or continuity beyond the tube bench tests described above. This is tube-era, mains-connected equipment that has not been powered on or serviced. Internal capacitors likely need replacement before use, and high voltages are present inside the chassis once powered. Strongly recommend a full inspection, cap job, and cord check by a qualified tech before first power-up – do not simply plug this in. Model: S-1000 II. Type: Integrated Tube Amplifier (mono). Condition: Used – Untested (Not Powered), Tubes Bench-Verified Good. Country/Region of Manufacture: United States. Items made in America are tariff exempt. Questions welcome before purchasing. Photos are part of the description, please inspect closely. We do our best to accurately photograph the item. Claude AI and Gemini are use to help develop listings. The listing is reviewed by a human to ensure accuracy. However, mistakes are still possible. If you believe there is a mistake or wish to confirm a detail, please send me a message and you will get a reply from a real human! Thank you for purchasing with us!
Pioneer SM-70 SF-70 OD-240 Vintage Tube Amplifier Audio Set Power Tested. Rare vintage Pioneer 3-piece tube audio component set including the SM-70 stereo power amplifier, SF-70 electronic crossover network, and OD-240 control amplifier unit. Audio output and detailed functions have not been tested. The units show scratches, stains, oxidation and age-related wear consistent with vintage equipment. Only the items shown in the photos are included. Information for International Buyers.
If you’re an uncompromising collector of antique technology, make sure to check out all my listings after you look at this one. I don’t think you’ll find a better, broader or more balanced assortment of technical antiques anywhere — hundreds of listings each year, almost all of them featuring eye-popping “gee whiz” gadgetry in exceptional original condition. Here are three working Western Electric 216-A amplifier tubes with good emissions. When tested on a Dan Nelson calibrated TV7/U tube tester, with 6.3 volts to their filaments, the tubes scored 44/35, 45/35 and 54/35. They were further tested in an early 20′s battery amplifier, and they all work well.
VINTAGE CROSLEY KT66 PUSH PULL MONOBLOCK TUBE AMPLIFIER WILLIAMSON STYLE TESTED WORKING. Up for sale is a vintage Crosley monoblock tube power amplifier in working condition. The amplifier has been tested and produces audio output. This classic American tube amplifier was designed for a pair of KT66 output tubes and features a push-pull output stage. The amplifier is currently fitted with two 6L6GC output tubes, two 6SN7GT tubes, and one 5U4G rectifier tube. Based on its tube complement, physical layout, and overall construction, this amplifier appears to follow a Williamson-style design philosophy, although the exact circuit topology has not been verified. The amplifier includes a speaker impedance selector and internal bias/tube balance adjustments accessible through the side access panel. Current tube complement. 2 × 6L6GC output tubes. 2 × 6SN7GT tubes. 1 × 5U4G rectifier tube. The exact model number is unknown. The original factory identification label has been partially torn and damaged over time, making the model information unreadable. The remaining label confirms Crosley Radio Corporation manufacture. Based on its construction and configuration, this amplifier is believed to have originally been part of a vintage Crosley high-fidelity console system, although this has not been conclusively verified. A rare and desirable vintage American tube amplifier for collectors, restorers, and hi-fi enthusiasts. Its KT66-based design, substantial transformers, and likely Williamson-inspired circuitry make it an interesting piece of early high-fidelity audio history. Please examine all photographs carefully, as they are an important part of the description. We will reply you within 24 hours. (except weekends and holidays). All emails and orders will NOT be processed during weekends and holidays, orders will be dispatched only on Wednesdays to the continental United States. We will offer help to solve your problems as fast as possible. We are here to help! If get here it means that you read the entire description and saw all the photos, have a nice day and thank you for shopping with us.
Up for sale is a vintage H. Scott Type 232 monoblock tube power amplifier in working condition. The amplifier has been tested and produces audio output. The Type 232 is one of H. Scott’s classic high-fidelity monoblock amplifiers from the golden age of American tube audio. Known for its excellent build quality, substantial transformers, and outstanding sound performance, it remains highly desirable among collectors and vintage hi-fi enthusiasts. This amplifier retains its vintage character and appears largely original. It is an excellent candidate for use, restoration, or collection. Features. Vintage H. Scott Type 232 monoblock power amplifier. Classic American high-fidelity tube design. Heavy-duty power and output transformers. Vintage point-to-point wiring construction. Made in USA. Please review all photographs carefully, as they are an important part of the description and condition report. A desirable vintage H. Scott monoblock amplifier for collectors, audiophiles, restorers, and enthusiasts of classic tube equipment. We will reply you within 24 hours. (except weekends and holidays). All emails and orders will NOT be processed during weekends and holidays, orders will be dispatched only on Wednesdays to the continental United States. We will offer help to solve your problems as fast as possible. We are here to help! If get here it means that you read the entire description and saw all the photos, have a nice day and thank you for shopping with us.
SANSUI HS-5 Pair Output Transformer for Tube Amplifier Vintage Tested & Working. Condition: Pre-Owned Tested and working. Please note that no detailed audio performance tests have been conducted. There are small scratches and signs of wear from normal use. Please check the images for more details. We do not undervalue merchandise or mark items as gifts. Such actions are prohibited by Japanese, U. US and International Buyers – Please Note.
