Description

Tested Trio of 12X4 Mix ANOS Audio Receiver Rectifier Vacuum Tubes Country of origin: USA Production era: 1960s (estimate) Model: 12X4 Manufacturer: Dumont, RCA & ? Type: rectifier Plate type: black Base type: 7 pins Spacers: two Getter frame: square wire Getter flash: top Filaments: standard Glass: Clear Stencil: 2 with total wear Condition: excellent Usage: minimal Cartons: NA Quantity: 3 Please review the photos for more detail Test results: Strong balanced results for emissions: 41 / 40, 40 / 40 and 38.5 / 38 For Emissions, the suggested minimum value is: 28 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