Telefunken 6211
COMPUTER GRADE DUAL TRIODE | GREY PLATE | MADE IN ENGLAND
English Production
High-Gain 6211
Amplitrex Tested
Up for sale is a specialized Telefunken 6211 computer-grade dual triode, New Old Stock in its original Tronix box. Manufactured in England, this tube features a Grey Plate structure and Top Ring Getter. Designed for high-stability switching and instrumentation, the 6211 offers higher transconductance than standard 12AU7 types, making it a favorite for audiophiles seeking a more “dynamic” drive stage.
Precision tested on our Amplitrex AT1000 digital laboratory system, the results below utilize the Percentage Method against the original 6211 factory design-center specifications (Ia = 3.2 mA / Gm = 2500 µMhos).
| Serial No. | Test Triode – T1/T2 | Parameter ip mAdc | Result ip mAdc | % Ia (Emission) | Parameter Gm uMhos | Result Gm uMhos | % Gm (Transc.) |
|---|---|---|---|---|---|---|---|
| #2922003 | Triode 1 | 3.2 | 3.5 | 109.4% | 2500 | 2700 | 108.0% |
| Triode 2 | 3.2 | 3.2 | 100.0% | 2500 | 2600 | 104.0% |
⚠️ International Buyers: Custom duties and taxes are the responsibility of the buyer in their country.
Custom duties and taxes are the responsibility of the buyer in their country.
Support: [email protected] Precision Verified — NOS Audio Tubes
Reviews
There are no reviews yet