Description

One Tested 1H4G Sylvania Audio Receiver Guitar Power Vacuum Tube Country of origin: USA Production era: Estimate 1950s Model: 1H4G Manufacturer: Sylvania Type: p ower Plate type: silver ribbed Filaments: hanging V Base type: octal 8 pin Spacers: two with tabs Getter frames: dimpled foil Getter flashes: side Glass: clear Stencils: minimal wear Condition: excellent Usage (estimate): minimal Quantity: 1 Please review the photos for more detail Test results: OK test results for Gm: .58 (marginal but still OK) For Gm, the suggested minimum value is: .55 Shorts: None detected For testing, a calibrated Triplett 3444A tester was used Compatibility: Suitable for vintage tube-based equipment, ideal for use in audio amplifiers, power amps, and general tube 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