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Up for sale is a rare pair of vintage Custom Audio SE-1 tube amplifiers. These units have been professionally customized to function together as a matched set. Both units power on and function as expected. The listing includes five vacuum tubes. Please refer to the high-resolution photos for a detailed view of the cosmetic condition and internal components. The product is a vintage tube amplifier from the brand AUDIO, specifically the model SE-1. This amplifier is known for its high-quality sound and unique design, featuring 5 tubes for enhanced audio performance. Made in the United States, this amplifier is a rare find for audiophiles looking to add a touch of nostalgia to their home audio setup. With its classic design and superior audio quality, this custom audio amplifier is sure to impress any music lover.

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!

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.

LOT OF VINTAGE NOS RCA Electron RADIO, TV, Stereo, Audio Amplifier Repair VACUUM TUBES original Boxes and sleeves some boxes damaged, dirty and or torn. Have not been tested. Some look new, some look used. See photos for details.

Traynor YGM-4 Studio Mate Vintage Guitar Tube Amp W/ Cover & 2 New Tubes MINTY. EXCELLENT NEAR MINT CONDITION – Original owner, extremely well cared for – Fully tested and working perfectly – A few EXTREMELY minor cosmetic marks on the body in spots, and one small mark on chord, no mesh damage – See Photos!

Vintage Philco and MajesticType 45 vacuum tubes. Which is a celebrated directly heated power triode introduced in 1929. It was extensively utilized in the audio output stages of 1930s console radios and is highly sought after by modern audiophiles for its exceptionally clean and musical single-ended audio amplification. These were an estate find. According to historical data sheets like the Tung-Sol 45 Manual, the standard operating parameters include. Filament Voltage: 2.5 V (AC or DC). Filament Current: 1.5 A. Maximum Plate Voltage: 275 V. Average Plate Current: 36 mA. Amplification Factor (Gain): 3.5. Maximum Power Output: 1.6 to 2.0 Watts. The base features a standard UX-4 4-pin arrangement. When looking directly at the bottom of the base with the two larger pins pointing toward you. Filament Pins: The two larger/thicker pins (Pins 1 and 4) carry the 2.5V filament supply. Plate Pin: One of the thinner pins (typically Pin 2) connects to the high-voltage anode. Grid Pin: The remaining thin pin (typically Pin 3) serves as the signal input grid. The handwritten text “FIL OK” on the glass bulb indicates that the filament has been tested for electrical continuity and is not broken. I didn’t test it, but I believe it’s in good working condition. Please view photos for more details.

Very cool vintage 70′s/80′s Electro Harmonix Hot Tubes pedal. Pedal shows some age wear. Overall in nice condition. Pedal works and sounds great.

This particular pair tests as NOS+ and are almost perfectly matched. I pulled and matched these from a group of about 20 vintage RCA black plate 6L6GC’s of the same style and these 2 were the strongest, closest matched tubes of the entire group, and while the style of print on them is a little different, their internal construction is identical. Also one tube’s top glass dome is slightly taller than the other, but this is also purely cosmetic. One tube has a CG/1968 date code, and the other a DE/1970 code. The tubes’ test results are displayed in the photos New 6L6 Spec 100% = 6,0. See the photos for physical / cosmetic condition. Also, t he tube boxes are original reused RCA boxes, and not original to 6L6s or these tubes. Notes Regarding Tube Tests. All tubes are tested on an Amplitrex AT-1000 tester in the automatic Fixed Bias Mode (for the most conservative results). Test Results are for a general reference only, and are not a guarantee of performance, nor a guarantee of how they will test on your tester. No real world (audio) performance measurements are taken.