Description

One Tested 6SC7GT National Union Black Glass Audio Receiver Preamp Vacuum Tube Country of origin: USA Production era: Estimate 1960s Model: 6SC7GT Manufacturer: National Union Type: preamp Plate: black Spacers: two with tabs Getter flash: base Glass: black Base: octal 8 pin Stencils: some wear Condition: very good, some surface tarnish Usage (estimate): minimal Cartons: NA Quantity: 1 Please review the photos for more detail Excellent strong test results for Gm: 1.35 / 1.35 For Gm, .86 is the suggested minimum No shorts For reference, a calibrated Triplett 3444A was used Compatibility: Suitable for vintage tube-based equipment, ideal for use in amplifiers, preamps, 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