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12AT7 Tube

The 12AT7 (European type ECC81) is a dual high-gain triode with a B9A (Noval) miniature 9-pin base. The high-reliability equivalent is the 6201 (E81CC).

Tek part number: 154-0039-00

Aged/Checked/Matched Pair Details
Used in Tek Part# S/N Range
513D (V4, V7, V8) 157-0008-00 All
514AD (V9) 157-0008-00 All
514D (V6) 157-0008-00 All
315 (V201) 157-0009-00 All
315 (V213) 157-0010-00 All
529 (V113) 157-0010-00 2110-up
RM529 (V113) 157-0010-00 4910-up
180 (V302) 157-0010-00 All
514D(V4) 157-0011-00 up to 3408
514AD (V6) 157-0011-00 All
524D, 524AD (V11) 157-0030-00 All
Type G Plug-in (V3617,V3627,V3967) 157-0030-00 All
Type K Plug-in (V5701,V6501,V6551) 157-0030-00 All
544, 546, 547, 556, M 157-0118-00 All


Tube aging procedure / Selection and checking procedure

Used in