Vintage Tube Amp

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 custom-built stereo tube amplifier, believed to date from the early 1960s. Tube complement was four 6L6 output tubes, six 6SN7 tubes and two 5Y3 rectifiers. Construction appears to consist of two matching push-pull 6L6 amplifier channels with three front-panel controls per channel. It is constructed with high end components like Cornell-Dubilier, Mallory, Aerovox & others. All transformers have been checked and are guaranteed to have good windings. Amplifier itself has not been powered or operationally tested. No vacuum tubes are included.

One pair of Tango U-608. Output transformer for single-ended tube amplifiers. 2.5k, 5k, 7k. 4, 8, 16 ohm. I have alternatives for you.

LUXMAN OY15-5 Output Transformers Pair Tube Amplifier Vintage Audio Japan Used. We do not mark merchandise values below value or mark items as “gifts” – Japan, US and International government regulations prohibit such behavior. About Importer’s Obligation. Thank you for your understanding. You won’t pay anything extra after checkout.

The stock circuit had four 6550 output tubes in parallel push pull. Stamped codes on base are FT5426433 and 138243E. Please ask questions if you have any. Item has finish imperfections and wear. Only what is pictured and described is included – if unclear, then ask to clarify.

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.

This 60W toroidal tube output transformer is newly made for high-end Push Pull audio amplifiers. It is an improve version to work with most of the common output tubes. 4 & 8 ohm. 0.1 & 0.2 ohm. 6146B, 6550B, EL34, & KT88.

This is a pair of Sansui HS-5 single-ended output transformers from the renowned Sansui brand. They are used but have been tested and are in good working condition. Two Output Transformers (Pair). Please refer to the photos for the included items. Type: Single-Ended Output Transformer (Pair). Dimensions (Each): 62 mm (W) × 62 mm (D) × 78 mm (H). Total Weight (Pair): Approx. Mounting Hole Spacing: 43 mm × 45 mm. Application: Vacuum Tube Amplifiers. Notes: This item has been tested and confirmed to be in good working condition. These are not included in the item price.

We do not mark merchandise values below value or mark items as gifts. Japan, US and International government regulations prohibit such behavior. About Importer’s Obligation. Thank you for your understanding.

This listing is for a single ended amplifier project chassis with 5K Output transformers and octal sockets. Transformers have been checked and work great. Dimensions:5 1/4″ X 5 1/4″ X 4 7/8.