Tested Pair of 6J5GT Sylvania Audio Receiver Pre-Amp Vacuum Tubes 

Country of origin: USA

Production era: Estimate 1950s

Model:   6J6GT

Manufacturer:   Sylvania

Type:   preamp 

Plate type: gray curved with radiators 

Filaments:  standard

Base type: octal 8 pins with metal collars

Spacers: two

Getter frame:  dimpled foil

Getter flash: base

Glass: clear with seams

Stencils: some wear

Condition:  very good, same construction

Usage (estimate):  nominal

Cartons: NA 

Quantity:  2

Please review the photos for more detail

Test results:

       Excellent strong balanced test results for Gm: 100 and 88

       For Gm, the suggested minimum is: 50

Shorts: None detected

For testing, a calibrated Military TV-7 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