Match Tested Pair of EL34 6CA7 SG Electron Tubes Audio Receiver Power Amplifier Vacuum Tubes 

Country of origin:  China

Model: EL34  6CA7  

Type: power

Plate type:  gray vented with grid radiators

Filaments:  standard

Base type:  michanol type brown octal 8 pin

Spacers: two

Getter frame:   solid halo

Getter flash: top

Glass:  clear

Stencils: excellent

Condition:  very good

Usage (estimate):   nominal

Quantity:  2

Please review the photos for more detail

Test results:

Special tests include true application voltage, frequency response, stability, microphonics, gas, noise and tone

Tests were performed on a THD audio amplifier

       Excellent matched test results for Gm/bias:

Gm ~ 8.0 with bias = 51 mA

Gm ~ 7.9 with bias = 48 mA

       For Gm, the suggested minimum is:  3.8

Shorts: None detected

For testing, a calibrated Triplett 3444 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 ground advantage

Shipping is combined when applicable

Please feel free to contact us if you require any additional information