Vintage Tube Amp

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.

Dual 6V6 power tubes.

Dynaco A-470 ST-70 Vintage Output Transformers Pair for Tube Amplifier.

Please reference photos and condition notes above. The guts on this model are the same as the Pioneer SX34. This Knight model was re-branded for sale. This particular unit has (2) Matushita 12AX7 Tubes and 4 ECL82 Tubes. Unit is powered, tested, and working. Scanned the FM band and adjusted volume during test. Overall good functional condition. Powers on and works. Audio output and FM band were tested. Overall good to fair cosmetic condition.

For sale is a cool oddball amp. Magnatone twilighter 260r twin 10 amp. Got this on a recent estate pick. Will need work and servicing. Ive never had it working or tried. Just assumed whoever buys it will know more about it than I will. Information found on Google. Twilighter was a brand Magnatone used on a line of amplifiers during the late 1 950s and the early 1 960s for LoDuca Brothers in Milwaukee. The LoDuca Brothers were a maior distribution company in the 1960s. Magnatone (Estey) built these amps, which were almost all clones of Magnatones, and put a Twilighter logo on the front instead of Magnatone. Essentially all Twilighter models should have a corresponding model with Magnatone. Known models include the Model 213R. Any further information on Twilighter amps can be submitted directly to Blue Book Publications. Amplifiers previously produced by Magnatone during the late 1950s and early 1960s. Please look over all pictures and ask any questions prior to purchasing.

The Dynakit Mark IV Tube Amplifier is a vintage model known for its high-quality sound and classic design. As a well-crafted piece of vintage electronics, this amplifier falls under the category of consumer electronics and vintage audio & video. With its Dynakit brand reputation and tube amplifier type, this model is sure to appeal to audiophiles and collectors looking for a piece of audio history to add to their collection.

Harmony H303A Vintage Tube Guitar Amplifier Amp. THE AMP IS WORKING Had a little Static in the first plug when adjusting volume BUT THE POWER CORD HAS BEEN CHANGED OUT ALSO MAY WANT TO / OR NEED SOME RESTORING Also missing a Knob. Please check pictures for best ideal of condition. ITEM IS IN GOOD USED CODITION ITEM MAY SHOW SOME SIGNS OF WEAR FROM BEING USED ASLO MARKS / SCRATCHES / SPOTS ALSO MINOR DUST / DIRT… UNPAID CLAIM AUTO SET FOR 2 DAYS.

This product is a bulk lot of vintage RCA vacuum tubes from the 1930s to 1950s, specifically designed for use in radios, TVs, and amplifiers. Made in the United States, these tubes are part of the RCA brand and are ideal for collectors or enthusiasts of vintage audio and video equipment. The lot includes a variety of models and types suitable for different applications within the vintage electronics category.