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12AU7 - TekWiki

12AU7A Tube

The 12AU7  (European: ECC82) (P/N 154-041, 154-0041-00, 154-0287-00) is a dual medium-μ triode vacuum tube with a center-tapped filament for use in either 6.3 V / 300 mA or 12.6 V / 150 mA heater circuits.

It is likely the first tube manufactured with a B9A (Noval) miniature 9-pin base (from 1946).

The 5814 is a high-rel version with increased heater current.

Tek part number: 154-0041-00, 154-0287-00

Aged/Checked/Matched Pair Details
Used in Tek Part# S/N Range
Type C Plug-in (V3203,V4203) 157-0025-00 All
Type D Plug-in 157-0049-00 All

Reference:

Tube aging procedure / Selection and checking procedure

Links

Used in

Some instruments using part 12AU7

Instrument Manufacturer Class Model Description Introduced
104 Tektronix Pulse generator 104 Square wave generator / voltage calibrator 1948
104A Tektronix Pulse generator 104A Square wave generator / voltage calibrator 1950
122 Tektronix Amplifier 122 low-level preamplifier 1950
160 Tektronix Oscilloscope 160 Modular Oscilloscope 1952
161 Tektronix Plug-in 161 Pulse Generator Module 1952
162 Tektronix Plug-in 162 Waveform Generator Module 1952
181 Tektronix Pulse generator 181 Time-mark generator 1955
190 Tektronix Signal generator 190 Constant-Amplitude Signal Generator 1954
310 Tektronix Oscilloscope 310A 4 MHz oscilloscope 1955
310A Tektronix Oscilloscope 310A 4 MHz oscilloscope 1959
316 Tektronix Oscilloscope 316 10 MHz 3" tube scope 1959
317 Tektronix Oscilloscope 317 10 MHz 3" tube scope 1959
3C66 Tektronix Plug-in 3C66 Carrier amplifier plug-in 1963
502 Tektronix Oscilloscope 502 1 MHz dual beam differential scope 1958
502A Tektronix Oscilloscope 502A 1 MHz dual beam differential scope 1963
507 Tektronix Oscilloscope 507 Power Industry scope 1959
511A Tektronix Oscilloscope 511A 10 MHz Tube scope 1948
512 Tektronix Oscilloscope 512 Early 2 MHz scope 1948
516 Tektronix Oscilloscope 516 15 MHz dual-trace scope 1960
517 Tektronix Oscilloscope 517 50 MHz scope 1951
524 Tektronix Oscilloscope 524AD TV waveform monitoring scope 1953
526 Tektronix Audio/Video 526 NTSC Vectorscope 1959
535 Tektronix Oscilloscope 535 10 (15) MHz dual-timebase scope 1954
536 Tektronix Oscilloscope 536 11 MHz X–Y oscilloscope 1957
545 Tektronix Oscilloscope 545 30 (33) MHz oscilloscope 1955
545A Tektronix Oscilloscope 545A 30 (33) MHz oscilloscope 1959
545B Tektronix Oscilloscope 545B 30 (33) MHz oscilloscope 1964
547 Tektronix Oscilloscope 547 50 MHz oscilloscope 1964
549 Tektronix Oscilloscope 549 30 MHz storage oscilloscope 1965
555 Tektronix Oscilloscope 555 Dual beam 30 MHz scope 1959
561 Tektronix Oscilloscope 561 10(4) MHz "General Purpose Scope" 1961
564 Tektronix Oscilloscope 564 Split-screen storage scope 1962
570 Tektronix Curve Tracer 570 Curve tracer for tubes 1955
575 Tektronix Curve Tracer 575 Curve tracer for transistors 1957
581 Tektronix Oscilloscope 581 100 (95) MHz oscilloscope 1959
581A Tektronix Oscilloscope 581A 85 MHz oscilloscope 1963
585 Tektronix Oscilloscope 585 100 (95) MHz oscilloscope 1959
585A Tektronix Oscilloscope 585 85 MHz oscilloscope 1963
C Tektronix Plug-in Type (53)C Dual-trace 8.5 (24) MHz amplifier 1954
D Tektronix Plug-in Type D Differential amplifier 1954
E Tektronix Plug-in Type E Differential amplifier 1955
Hickok 1825 Hickok Plug-in 1825 Differential amplifier 1959
Keithley 660A Keithley Multimeter 660A Differential voltmater 1968
N Tektronix Plug-in Type N Sampling system plug-in 1960
Pentrix L20 Pentrix Plug-in L20 4 GHz Spectrum Analyzer plug-in 1963
Pentrix L30 Pentrix Plug-in L30 10.4 GHz Spectrum Analyzer plug-in (?)
Q Tektronix Plug-in Type Q Strain gauge preamp plug-in 1960