Pulled from a WORKING pair of W3M tube amplifiers, driving 6L6GC pairs in each. Amps (which are not included, nor are the tubes) were gone through and recapped last year. I bought the amps for the tubes, as I needed them. Parting out now the amplifiers (and other items from the lot). 1 One of them was custom mounted to the chassis, as they relocated one of the caps. They bent the tab that mounts the transformer to the chassis. I tried to bend it back, but it is solid. They must have a metal bending tool. You will need to rebend. I tried with a strong set of grips, and while it moves, I just didn’t trust myself. Obviously not an issue that affects performance, just the way it is mounted. If you are handy, or have some experience bending metal, you can certainly get it back. 2 other one had some wax on the underside, and the wires. Likely a bad wax cap over the years melted. You can likely wipe it off… I did, and some came off. Didn’t spend too much time with it though (like literally 10 seconds). Should clean up nice. These are superb, working TO-300 transformers. Pairs are getting super hard to find (as are singles). Very heavy, will be double boxed to ensure they make the transit.
OPEN TO FAIR OFFFERS. The listing price is for a. EICO HF-60 Mono Tube Amplifiers based on EL34/6CA7 Tubes. No tubes are included. The tubes shown are for testing only; not included. The output transformers are the sough-after Acrosound TO-330 As far as I can tell, they are in original configuration. I hooked them up on a variac, set up to 80v. Both powered up OK. One amp generated hum sound but did pass music through to the connected speaker. The other didn’t produce music nor hum. On this amp, the connected speaker did produce cracking noise as I wiggle the small tubes. So, at least, the output and power transformers are all good. By visual inspection, I can tell they are reasonably nice; no signs of abuse, burn, damage. Shot me any questions and I’ll try to answer. I have other audio equipment, like. Accuphase, Acurus, Adcom, Aragon, Arcam, Audio Research, Audioquest, Ayre, B&K, B&O, Bang Olufson, B&W, Bowers Wilkins, Bryston, California Audio Labs, Cary, Classe, Cambridge, Carver, Conrad Johnson, Creek, Denon, Dynaco, Dynaudio, Goldmund, Infinity, Jadis, JBL, Jolida, JM Lab, Kef, Kimber, Klipsch, Krell, Levinson, Lexicon, Linn, Marantz, Martin Logan, Mccormack, Mcintosh, Meridian, MIT, Musical Fidelity, Music Hall, NAD, Naim, Nakamichi, NHT, Paradigm, Parasound, Pass, Pioneer, Proceed, PS Audio, PSB, Quad, Rega, Revel, Rotel, Rowland, Sonic Frontiers, Sonus Faber, Spendor, Sunfire, Tandberg, Tannoy, Theta, Thiel, Threshold, Totem, Transparent, Vandersteen, Vmps, VPI, VTL, Velodyne. AR, Audio, Audiophile, Amplifier, Amps, Arcam, Acurus, Aragon, Adcom, ADS, Advent, Bose, Boston, Beovox, Bryston, Bedini, B&K, B&0, B&W, Bowers & Wilkins, Celestion, Counterpoint, Canton, Cello, Creek, Cerwin Vega, Dahlquist, Denon, Dcm, Dynaco, Dynaudio, Ess, Spica, Epicure, Ensemble, Electrostatic, Elite, Fisher, Fosgate, Harman kardon, Harbeth, Integra, Infinity, JBL, Jadis, Jolida, Linn, Luxman, KEF, Klipsch, KLH, Krell, Kenwood, Martin Logan, McIntosh, Mirage, Mission, Monitor Audio, Nad, Onkyo, Paradigm, Proac, Sony, Pioneer, Polk-Audio, Preamplifier, Quad, Rogers, Rotel, Rega, Stanton, Speakers, Audio, Stereo, Studio, Vandersteen,, Snell, Spendor, Thorens, Vandersteen, Wharfedale, Yamaha, Speakers, Turntable, M&K, Accuphase, Dali, Wilson Audio, Sonus Faber, Definitive Technology, PSB, NHT, Magnepan, Eminent Technology, Monitor Audio, Vienna Acoustic, Meridian, Behringer, Acoustat, Genesis, Opera, Mirage, Energy, Pinnacle, Musical Fidelity, Sonic Frontiers, Cambridge Audio, Sunfire, Velodyne, SVS, HSU Research, Audio Research, Tannoy, Subwoofer, McCormack, Meadowlark, Conrad Johnson, Parasound, Magneplanar, Audible Illusions, Mark Levinson, Vintage, REL, Revel, Nakamichi, ESS, Emotiva.
Offered here is a vintage Acrosound Ultra-Linear output transformer, Type TO-310, manufactured in the USA by Acro Electronic Products Co. Acrosound transformers are highly regarded for wide bandwidth, excellent balance, and use in classic push-pull tube amplifier designs. The TO-310 is a desirable model for restoration projects and high-quality DIY builds. Metal cover shows cosmetic wear, scuffs, and paint loss consistent with age (see photos). Original cloth-covered leads with typical age-related wear. Leads retain factory number tags, which aid identification. Mounting base is solid and straight. Electrical Checks (DC Resistance). The transformer has been checked for continuity and DCR only using a digital multimeter. Blue stripe? Green stripe: 98.8? Blue? Green: 118.9? Tan #1? Green stripe: 38.8? Tan #2? Blue: 152.9? Tap 1? 2: 0.7? Tap 1? 3: 0.4? Tap 1? 4: 0.4? Readings are consistent with a multi-tap ultra-linear output transformer and indicate intact windings. Continuity and resistance checks only. No signal, load, or in-circuit testing performed. Transformer has not been powered. Genuine vintage Acrosound iron (not a reproduction). Excellent candidate for restoration, tube amplifier builds, or collectors. Please review all photos carefully – they are part of the description. If you have any questions or would like clarification on the measurements, feel free to ask.
Vtg RARE 1950′s GEC UK EL34 Power Amplifier Mullard TUBE PARTRIDGE Transformer. This is believed to be a rare hand built GEC UK EL34 power amplifier with Partridge transformers which looks to be monophonic. The voltage jumper is set to the lowest voltage of 200-210V it does not go lower. Some of the wiring under the power amp has frayed coverings but the wiring and electronics look good with no burns or damp areas. One transformer has electricians tape across the front. The power tubes look to be Mullard EL34 but they are oxidized and assumed not to work.
Tube Amplifier Power Transformer #30048-2ST 138415E for 6550 & Others Vintage. This item has not been tested. Please see pictures of this pre owned used condition item. Thanks for visiting our store! Measurements: 4.25″ Long x 5″ Deep x 3.5 Tall weighing almost 10 Pounds.
UTC A-10 input transformer, Primary: 500/333/200/125/50, Secondary : 50K P. Frequency response: 20hz to 20kHz, +15dbm max level. Used, some scratches and discoloration. Winding’s tested with shop Simpson 260 VOM. No opens or shorts.
VINTAGE TRANSMITTER TUBE AMPLIFIER PROJECT W/ STANCOR P-8030 MOD TRANSFORMER & 3B28. Vintage Transmitter Tube Linear Amplifier Project – Stancor P-8030 Modulation Transformer & 3B28 Tubes – For Parts/Repair. Up for sale is a custom-built transmitter tube linear amplifier, equipped with a Stancor P-8030 Plate Modulation Transformer and United Electronics 3B28 rectifier tubes. This amplifier is offered strictly as a non-working project, for parts or repair. What you see in the photos is exactly what you will receive. Untested (no power cord). Should be evaluated and serviced by a qualified professional before any attempt to power on. Cosmetically in rough shape: missing top and bottom covers, with dings, scratches, surface rust, and general wear. Approximate Dimensions & Weight. 17 ¼” (W) x 11″ (H) x 12 (D). For Items listed in working condition, they have to be tested on arrival, if there is any significant difference with the description, contact me immediately. I do my best to describe the items as accurately as possible but I may miss some details or have variance in opinion regarding item condition. Please ask any and all questions you may have regarding this item to ensure your satisfaction. I will issue feedback once I receive it and know item has arrived.
