Description

Tested Pair of 12AX7 ECC83 Sylvania for Fender Audio Receiver Guitar Preamplifier Vacuum Tubes Country of origin: USA Production era: 1960s Model: 12AX7A ECC83 Manufacturer: Sylvania Type: preamp Plate type: 17mm gray pinched Base type: 9 pins Spacers: two Getter frame: halo wire Getter flash: top Filaments: standard Glass: Clear Stencils: some wear Condition: excellent, same construction Usage (estimate): minimal Quantity: 1 Please review the photos for more detail Test results: Strong balanced test results for Gm: 1.35 / 1.2 and 1.2 / 1.25 For Gm, the suggested minimum value is: 1.0 Shorts: None detected For testing, a calibrated Triplett 3444A tester was used Compatibility: Suitable for vintage tube-based equipment, ideal for use in radio amplifiers, preamps, and general audio equipment The tubes will be carefully packed to ensure safe shipping Estimated delivery time within the USA is 3 to 7 business days Standard shipping service is US Postal 1st class Shipping is combined when applicable Please feel free to contact us if you require any additional information