Mullard 12AU7/ECC82 Vacuum Tube.
17mm Long Plate with copper plate posts.
Legendary (for a good reason) Dual Post (aka Goalpost) Getter support with large O Getter.
Made in England in 1958.
$85 for one tube.
If you love the sound of short plate Mullard 12AU7's and haven't tried these, you will be amazed at how much better these will sound.
This design has k61 code and was in production from 1957 to 1958.
All of them test very strong and have k61 B8_ (Blackburn) or R8_ (Micham) code indicating they are made in 1958 in England.
All are tested great in my preamplifier for noise/microphonics.
I have several of them, so pair matching will not be a problem.
Just let me know how many you need, and I will send you photos and detailed information including measurements and date code.
Tubes are fully tested by precision calibrated Hickok 539C tube tester. No shorts, leakage or gas.
USPS Priority mail shipping with tracking within US will be $9.
Payment by check or money order (no Paypal please). Local pickup with cash is welcome.
Tubes are 100% guaranteed.