Description

One Tested 7643 E80CF SQ NOS NIB Amperex Audio Receiver Power Vacuum Tube Country of origin: West Germany Production era: 1960s (estimate) Model: 7643 E80CF Manufacturer: Amperex Type: preamp high quality, similar to the 6BL8 Plate type: gray Base type: 9 pins gold plated Spacers: two Getter frame: halo wire Getter flash: top Filaments: standard Glass: Clear pinched glass with seams Stencils: excellent Condition: Excellent Usage: NOS (new) Carton: original Quantity: 1 Please review the photos for more detail Test results: Strong balanced results for Gm: 4.0 / 4.7 For Gm, the suggested minimum value is: 3.1 / 3.3 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