Telefunken ECC83/12AX7 50s-60s - Nice

You are buying a matched group of six genuine Telefunken 12AX7 / ECC83 dual-triode vacuum tubes.

All six tubes share the highly desirable construction:

•  Long gray ribbed plates

•  Thick halo getters

•  Classic Telefunken diamond bottoms

•  Clearly marked Made in West Germany

•  Factory branded GAP/R Computor (industrial/selected stock originally supplied for analog computer use)

These are authentic West German Telefunken tubes, not reissues or copies.

Test Results

All tubes were tested on a Precision 10-12 tube tester (Electronamic). Readings are as follows (each pair of numbers represents the two sections of the dual triode):

•  Tube 1: 78 / 78

•  Tube 2: 78 / 78

•  Tube 3: 72 / 72

•  Tube 4: 78 / 74

•  Tube 5: 76 / 76

•  Tube 6: 76 / 76

These are strong results for used Telefunken 12AX7s on this tester (solid/new tubes typically read in the mid-60s range). Most tubes show excellent internal section balance. No shorts, gas, or other issues noted during testing.

Condition

Tubes are in excellent structural condition. Glass is clean, getters are strong and intact, pins are straight and clean. Lettering varies in intensity as is common with vintage Telefunken tubes. Ready for use in high-end audio, guitar amplifiers, or as high-quality spares.

Matching Notes

This is a coherent group of the same construction and similar strength. The strongest and closest tubes form excellent matched pairs and a very tight matched quad.

What you receive

•  All six tubes pictured and described

•  Secure packaging for safe shipping

These are premium vintage Telefunken tubes that are becoming increasingly scarce in this condition and construction. Perfect for critical audio applications where the classic Telefunken sound is desired.

Please review the photos carefully and ask any questions before bidding/buying. Sold as a complete set of six.

Payment & Shipping

•  Payment due within 3 days

•  Ships promptly with tracking and insurance

•packed with bubble wrap and packaging peanuts, secured in double boxing

•  International shipping available upon request (buyer pays actual shipping)

Thank you for looking!