Item Tag: Tube Amplifier

  • Heathkit AA-191 tube amplifier manual build assembly operation diagrams

    ITEM DESCRIPTION: Reprint of the manual Heathkit Assembly Manual Model AA-191. Includes kit assembly step-by-step wiring instructions, schematics, parts locating diagrams, chassis wiring diagrams, parts list, test voltage pin chart. 32 pages. Quality Reprint — Not a Photocopy! ORIGINAL FORMAT: Book of folded pages lays flat to read, precisely like the original. No combs or plastic binding spines. ABSOLUTE TOP QUALITY: Original vintage publications are scanned at high resolution and digitally enhanced for clarity and legibility. Hours are spent on each manual to optimize reproduction quality and clean up the appearance. Check my feedback and see hundreds of reviews. PRINTED 600DPI ON ARCHIVAL PAPER: Using archival pigment-based inks that are permanent and will not fade. Paper is heavy 24 pound, archival, acid free, and document grade. Cover is 60lb cover stock. 100% Made in USA. MY PLEDGE TO YOU: I will package your item securely and professionally and will get it to the post office as quickly as possible. If something goes wrong with the mail, I work hard to resolve the problem and stay in communication.

  • Line Magnetic Audio LM-508IA 48W+48W Tube Amplifier Integrated Amp w/ 2 VU Meter

    Output power: 48W+48W (single-ended Class A working state). – LM-508IA integrated power amplifier. – The tube amplifier has a better and full sound. – High-quality tubes allow you to listen to natural and soft sounds: A 6SL7 is used for the preamp as the input buffer, and then a 6SN7 for each channel is used for secondary amplification.

  • Very Rare Krohn-Hite DCA-50 50 Watt Wide Band Tube Amplifier DC-500 KC Powers On

    Very rare KH DCA-50 wide band amp. These are very rare and only come up for sale every few years if that. Absolutely amazing utility amplifier built to the highest specifications. Runs 4 x 6aS7 (or 5998 tubes) and 4x 6DQ5 tubes. Powers on and fan blows but has not been tested further. Weighs over 90 lbs snd is huge so local pickup or delivery is available in New England area.

  • Grommes Precision S-60 60w Vacuum Tube Amplifier – Untested

    Due to this being untested, I have included detailed photos of the unit for you to judge for yourself. Buying as-is, untested, in unknown working condition, with an emphasis on replacing the capacitors before use.

  • GROMMES 221A Mono Tube Power Amplifier, Works & Looks Great

    I also show the circuitry underneath. The amp appears to be all original. Physical condition is really good for the age. I plugged it in a variac, slowly turned up to 80v. The amp produced good sound to the connected speaker.

  • pair of Grommes Model 10PG 6V6 integrated tube amps

    These will make a nice rehab project for a novice tube amp enthusiast. They both play but one amp has some scratchiness in the output. Like any 65 year old electrical appliance, these would both benefit from testing and appropriate parts replacement for long term reliability. Since they are 65 years old I’m selling them as “parts or not working”. They are offered for sale in as-is, as-pictured condition for parts, repair or restoration.

  • 1958 to 61 Grommes 24PG Tube Amplifier and 102 GTA Tube Tuner

    The amplifier works perfectly and looks and sounds great. The tuner works as well including the magic eye tube. I have the schematics brochure/manual for the 102 Tuner as shown in the pics.

  • Pair (2) GROMMES-Precision Electronics G-101A Mono Tube Amplifiers 100W – Work

    Very powerful. Physical condition is pretty good too. The chassis is quite clean for the age. One amp has the front a little bent. Also, one amp’s power indicator lamp is out. OPEN TO FAIR OFFFERS.

  • 1PC 110V HIFI Class A Single Ended PCB Board 6Y6GT Tube Audio Amplifier

    1PC 110V HIFI Class A Single Ended PCB Board 6Y6GT Tube Audio Amplifier Maximum output: 5W×2(8ohm) Input Impedance: 100Kohm Output Impedance:4ohm/ 8ohm Signal to Noise Ratio: 89dB Input Sensitivity: 500–2000mV Total Hamonic Distortion: less than 1%(1KHz) Frequeney responses: 20Hz–30KHz+/-1dB Power Supply: AC110V Size:300mm(W)×13mm(H)×200mm(D) Weight: 6.5kg This is the completed tube amplifier.