Item Tag: RCA

  • 2 NIB NOS Tektronix selected RCA 12AU7 tubes TV7 & AT1000 tested excellent

    AT1000 test results 2 NIB NOS Tektronix selected RCA 12AU7 tubes. Minimum good 12AU7 per section-Gm: 1.40 mA/V, Ip: 6 mA. Nominal/new 12AU7 per section-Gm: 2.20 mA/V, Ip: 10 mA. Excellent testing and great sounding tubes.

  • RCA 5692 preamp tubes premium 6SN7 tested strong and matched pair

    One pair of RCA 5692 tubes. TV-7D/U tested at 100, 95 and 93, 90.

  • RCA 76 Tube Mixer Amp Chassis. (Pre Amp)

    The RCA 76 Tube Mixer Amp Chassis is a vintage audio component from RCA, known for its quality and durability. This preamp chassis is designed to house a tube mixer amp, offering a classic and retro aesthetic for vintage audio enthusiasts. With the RCA brand reputation and focus on audio quality, this product is a great addition to any vintage audio setup looking to enhance sound performance.

  • Vintage RCA 12AU7A PLATINUM PLUS GRADE Clear Top Preamp Tube = (6189 5814 7316)

    All tubes come with a full 30 day, unconditional, no questions asked, money back satisfaction guarantee! Test scores will average 85% to 95% of NOS values. Individual test scores will be written on the new boxes that you receive with your tubes. You are purchasing one “Platinum Plus Grade” tube . This means that the plate matching is virtually perfect on a calibrated Hickok 799 within 1% Please see our other listings for “Silver, Gold and Platinum” tubes. Silver Grade tubes are matched within 15%, Gold Grade tubes within 10% and Platinum Grade within 5%. The Gold and Platinum tubes are recommended for more critical applications such as your preamp and phono stage. Please email with any questions and/or concerns.Thank you for viewing my listings.

  • 7 RCA, GE, Syl Balanced 6SN7GTA&B Tubes – All Tested NOS on Maxi PreAmp & 539B

    7 – RCA, GE Balanced 6SN7GTA&B Tubes. I then use the Hickok 539B to confirm the test results and provide an. Hickok’s 539B Specifications state that any tube over. All tubes have been tested and matched on two Hickok Professional Tube Testers.

  • Vintage RCA 12AU7A PLATINUM PLUS GRADE Clear Top Preamp Tubes Matched Pair =6189

    All tubes come with a full 30 day, unconditional, no questions asked, money back satisfaction guarantee!Test scores will average between 85% and 95% of NOS values.Individual test scores will be written on the new boxes that you receive with your tubes. You are purchasing a “Platinum Plus Grade” matched pair of tubes. This means that the plate matching is virtually perfect on a calibrated Hickok TV-7 or 799 within 1%.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.Please see our other listings for “Silver, Gold and Platinum” tubes. Silver Grade tubes are matched within 15%, Gold Grade within 10% and Platinum 5%.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.

  • Matched Pair NOS RCA 6AK5 EF95 5654 Audio Preamp Tubes Gray Plates

    Tv7 tested NOS TUBES. 90 % of our tubes are Tv7 tested. All our tubes have been tested for. Tube testers do not test for these problems in the manner in which you think, except to the extent that a tube tester with sensitive leakage detection will find far more “noisy” tubes than a tube tester with only “fair” leakage sensitivity, to the extent that the noise is due to this problem.

  • Mullard 7247 Matching Pair Blackburn UK Preamp Tubes

    Eico by Mullard. We cannot be responsible for what tubes test in another tester.

  • RCA 5751 Triple Mica Black Plate Pair Preamp Tubes

    We cannot be responsible for what tubes test in another tester.

  • Pair of RCA 6SL7GT/VT229 Preamp tubes

    Pair of matched RCA 6SL7GT/VT229 Dual Triode Preamp Tubes. where minimum is 32. Tube 2: 56/59.