12AT7

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12AT7 Vacuum Tube

The 12AT7  (European: ECC81) (P/N 154-0039-00) is a dual high-gain triode vacuum tube with a B9A (Noval) miniature 9-pin base.

The high-reliability equivalent is the 6201 (E81CC).

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, 556, M
547 (V1003)
157-0118-00 All
6730+

Reference:

Tube aging procedure / Selection and checking procedure

Links

Used in

Some instruments using part 12AT7

Instrument Manufacturer Class Model Description Introduced
161 Tektronix Plug-in 161 Pulse Generator Module 1952
180 Tektronix Pulse generator 180 Time-mark generator 1958
1M1 Tektronix Plug-in 1M1 Calibration plug-in 1964
310 Tektronix Oscilloscope 310A 4 MHz oscilloscope 1955
310A Tektronix Oscilloscope 310A 4 MHz oscilloscope 1959
315 Tektronix Oscilloscope 315 "Portable" tube scope 1952
316 Tektronix Oscilloscope 316 10 MHz 3" tube scope 1959
360 Tektronix Oscilloscope 360 CRT Indicator Unit 1954
3A2 Tektronix Plug-in 3A2 500 kHz dual-trace amplifier plug-in 1964
3A75 Tektronix Plug-in 3A75 4 MHz amplifier plugin 1964
502 Tektronix Oscilloscope 502 1 MHz dual beam differential scope 1958
502A Tektronix Oscilloscope 502A 1 MHz dual beam differential scope 1963
511A Tektronix Oscilloscope 511A 10 MHz Tube scope 1948
512 Tektronix Oscilloscope 512 Early 2 MHz scope 1948
513 Tektronix Oscilloscope 513 18 MHz scope 1950
514 Tektronix Oscilloscope 514 10 MHz scope 1949
516 Tektronix Oscilloscope 516 15 MHz dual-trace scope 1960
524 Tektronix Oscilloscope 524AD TV waveform monitoring scope 1953
529 Tektronix Audio/Video 529 TV Waveform Monitor 1965
544 Tektronix Oscilloscope 544 50 MHz oscilloscope 1964
546 Tektronix Oscilloscope 546 50 MHz oscilloscope 1964
547 Tektronix Oscilloscope 547 50 MHz oscilloscope 1964
556 Tektronix Oscilloscope 556 50 MHz dual beam scope 1966
565 Tektronix Oscilloscope 565 10 MHz dual-beam scope 1962
570 Tektronix Curve Tracer 570 Curve tracer for tubes 1955
75 Tektronix Plug-in 75 4 MHz amplifier plug-in 1961
A Tektronix Plug-in Type A 20 MHz amplifier plug-in 1954
B Tektronix Plug-in Type B 20 MHz amplifier plug-in 1959
C Tektronix Plug-in Type (53)C Dual-trace 8.5 (24) MHz amplifier 1954
G Tektronix Plug-in Type G 20 MHz differential amplifier 1955
H Tektronix Plug-in Type H 15 MHz amplifier plug-in 1958
K Tektronix Plug-in Type K 30 MHz amplifier plug-in 1955
K Tektronix Plug-in Type K 30 MHz amplifier plug-in 1955
L Tektronix Plug-in Type L High sensitivity amplifier plugin 1957
M Tektronix Plug-in Type M 20 MHz quad-channel amplifier 1962
N Tektronix Plug-in Type N Sampling system plug-in 1960
R Tektronix Plug-in Type R Tranistor rise-time test set 1958
S Tektronix Plug-in Type S Diode recovery tester plug-in 1960
Z Tektronix Plug-in Type Z Comparator preamp plug-in 1960