Description

Tested Pair of Type 6888 Sylvania Audio Receiver Power Vacuum Tubes Country of origin: USA Production era: 1950s Model: 6888 Manufacturer: Sylvania Type: power pentode Plate type: black Base type: metal collar with octal 8 pins Spacers: three with copper rods and grid radiators Getter frame: dual rectangle wire Getter flash: top Glass: clear Stencils: moderate wear Construction: same configuration Condition: excellent Usage (estimate): minimal if any Quantity: 2 Please review the photos for more detail Test results: Strong balanced test results for Gm: 5.6 and 5.6 For Gm, the suggested minimum value is: 4.1 Shorts: No shorts were detected For testing, a calibrated Triplett 3444A tester was used Compatibility: Suitable for audio amplification and vintage tube-based equipment ideal for use in guitar amplifiers, preamps and audio recording equipment The tube 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 reach out if you have any questions or require additional information