The product is a pair of RCA 12AX7 vacuum tubes from the 1950s, specifically with a black plate and D bar getter. These preamp tubes are known for their strong test results when tested with a Hickok 539C. Made in the United States, these vintage tubes are highly sought after by audio enthusiasts and collectors for their superior quality and performance in vintage audio setups.
This unit has been thoroughly cleaned and the cabinet has been repainted with a textured gray paint, saving the serial number on the bottom. It came from an electronic guru’s collection that had lots of clean and working units. As you can see in the video, it powers up like it should and all 4 green eyes light up slowly as it warms up and the meter centers to zero. The functions have not been tested, but there’s a good chance that it works, coming from this collection. Shipping is $25.
GRAB BAG OF NOS Vacuum Tubes (each qty 1 you purchase gets you three tubes, in boxes)What you will get:For every lot you purchase, you will receive 3 vintage vacuum tubes in boxes. While this lot will not contain any valuable vintage tubes (likely no Western Electric, 12ax7, Genelux, etc...), but it will contain all vintage tubes. There will be a good assortment of tubes, audio tubes, 7/9 pin, octal/loctal, early tubes and more. Many lots are available! (please understand the picture in the listing is representative, and not the exact lot you are getting...)Use them for resale, stock up for your inventory, art projects, collect them etc!---------------These are not tested tubes - while they are NOS in boxes, sometimes after sitting 50+ years they no longer work - please expect that 5-10% of the tubes may test bad. However, 90%+ of these tubes are functioning as new!Please let me know if you have any brand preference - however, there is no guarantee we will have any specific brand in stock.
All tubes come with a full 30 day, unconditional, no questions asked, exchange or money back satisfaction guarantee!Test scores will average between 90% and 95% of NOS values.Individual test scores will be written on the new boxes that you receive with your tubes. These tubes were carefully screened by the manufacturers (Baldwin, Conn, Wurlitzer, Lowery etc.) and specially selected for their low noise and microphonic characteristics. This makes them ideal for your preamplifier and phono stage applications.You are purchasing a "Platinum Grade" matched pair of tubes. This means that the plates are very tightly matched on a calibrated Hickok TV-7 or 799 within 5%Please see our other listings for "Silver, Gold and Platinum Plus" tubes. Silver Grade tubes are matched within 15%, Gold Grade within 10% and Platinum Plus 1%.The Gold and Platinum Grade pairs are recommended for more critical applications such as your preamp and phono stage.To purchase more than one pair, when available, simply change the number in the quantity box which is located just above the advertised price.Please email with any questions and/or concerns.Thank you for viewing my listings.