6AU6

The 6AU6 (European: EF94) (Russian: 6Ж4П) (P/N 154-0022-00, 157-0073-00, 157-0059-00, 154-0284-00) is an RF pentode vacuum tube for up to ~50 MHz with a miniature B7G 7-pin base, introduced in 1946.
The 12AU6 is the equivalent version with a 12 V heater.
The 6AU6 is used in the 513, 561, 581, 585 and others as an error amplifier, in the Type 53/54C plugin, and others.
The 6AU6A is an improved version for equipment with series-connected heaters that has controlled warm-up and heater-to-cathode voltage rating increased to 200 V. The 6AU6WA is a ruggedized version.
The 8425 (used in Type Q) is an improved successor version.
Tek part number:
- 154-0022-00
- 157-0073-00 (selected pair)
- 157-0059-00 (6AU6A)
- 154-0284-00 (6AU6WA)
| Aged/Checked/Matched Pair Details | ||
|---|---|---|
| Used in | Tek Part# | S/N Range |
| 310 | 157-0034-00 | See Note 1 |
| 502 (V414,V444) | 157-0056-00 | Before Mod M6179 |
| Type CA Plug-in | 157-0059-00 | All |
| 502, 505 (V414, V444) | 157-0073-00 | ? |
Note 1: Replaced by raw 6AU6 with instrument mod
Reference:
Links
- Brimar 6AU6 Datasheet
- 6AU6 / 6AU6A / 6AU6WA / 8425 @ radiomuseum.org
Pictures
-
6AU6 and 12AU6 Vacuum Tubes
-
6AU6A (P/N 157-0059-00)
Some instruments using part 6AU6
| Instrument | Manufacturer | Class | Description | Introduced |
|---|---|---|---|---|
| 107 | Tektronix | Pulse generator | square-wave generator | 1958 |
| 129 | Tektronix | Mainframe | Plugin power supply | 1964 |
| 160 | Tektronix | Oscilloscope | Modular Oscilloscope | 1952 |
| 180 | Tektronix | Pulse generator | Time-mark generator | 1958 |
| 180A | Tektronix | Pulse generator | Time-mark generator | (?) |
| 181 | Tektronix | Pulse generator | Time-mark generator | 1955 |
| 190 | Tektronix | Signal generator | Constant-Amplitude Signal Generator | 1954 |
| 2A60 | Tektronix | Plug-in | 1 MHz amplifier plug-in | 1962 |
| 310 | Tektronix | Oscilloscope | 4 MHz oscilloscope | 1955 |
| 310A | Tektronix | Oscilloscope | 4 MHz oscilloscope | 1959 |
| 316 | Tektronix | Oscilloscope | 10 MHz 3" tube scope | 1959 |
| 317 | Tektronix | Oscilloscope | 10 MHz 3" tube scope | 1959 |
| 360 | Tektronix | Oscilloscope | CRT Indicator Unit | 1954 |
| 3A72 | Tektronix | Plug-in | Dual channel amplifier plug-in | 1961 |
| 3C66 | Tektronix | Plug-in | Carrier amplifier plug-in | 1963 |
| 502 | Tektronix | Oscilloscope | 1 MHz dual beam differential scope | 1958 |
| 502A | Tektronix | Oscilloscope | 1 MHz dual beam differential scope | 1963 |
| 506 | Tektronix | Oscilloscope | 20 MHz scope | 1964 |
| 511 | Tektronix | Oscilloscope | 10 MHz Tube scope First Tektronix oscilloscope |
1947 |
| 511A | Tektronix | Oscilloscope | 10 MHz Tube scope | 1948 |
| 512 | Tektronix | Oscilloscope | Early 2 MHz scope | 1948 |
| 513 | Tektronix | Oscilloscope | 18 MHz scope | 1950 |
| 514 | Tektronix | Oscilloscope | 10 MHz scope | 1949 |
| 515 | Tektronix | Oscilloscope | 15 MHz Tube scope | 1955 |
| 516 | Tektronix | Oscilloscope | 15 MHz dual-trace scope | 1960 |
| 517 | Tektronix | Oscilloscope | 50 MHz scope | 1951 |
| 524 | Tektronix | Oscilloscope | TV waveform monitoring scope | 1952 |
| 526 | Tektronix | Audio/Video | NTSC Vectorscope | 1959 |
| 529 | Tektronix | Audio/Video | TV Waveform Monitor | 1965 |
| 531 | Tektronix | Oscilloscope | 10 MHz oscilloscope | 1954 |
| 532 | Tektronix | Oscilloscope | 5 MHz oscilloscope | 1955 |
| 535 | Tektronix | Oscilloscope | 10 (15) MHz dual-timebase scope | 1954 |
| 536 | Tektronix | Oscilloscope | 11 MHz X–Y oscilloscope | 1957 |
| 544 | Tektronix | Oscilloscope | 50 MHz oscilloscope | 1964 |
| 545 | Tektronix | Oscilloscope | 30 (33) MHz oscilloscope | 1955 |
| 545A | Tektronix | Oscilloscope | 30 (33) MHz oscilloscope | 1959 |
| 546 | Tektronix | Oscilloscope | 50 MHz oscilloscope | 1964 |
| 547 | Tektronix | Oscilloscope | 50 MHz oscilloscope | 1964 |
| 549 | Tektronix | Oscilloscope | 30 MHz storage oscilloscope | 1965 |
| 555 | Tektronix | Oscilloscope | Dual beam 30 MHz scope | 1959 |
| 561 | Tektronix | Oscilloscope | 10(4) MHz "General Purpose Scope" | 1961 |
| 561A | Tektronix | Oscilloscope | 10(4) MHz "General Purpose Scope" | 1962 |
| 564 | Tektronix | Oscilloscope | Split-screen storage scope | 1962 |
| 565 | Tektronix | Oscilloscope | 10 MHz dual-beam scope | 1962 |
| 567 | Tektronix | Oscilloscope | Sampling scope | 1962 |
| 570 | Tektronix | Curve Tracer | Curve tracer for tubes | 1955 |
| 575 | Tektronix | Curve Tracer | Curve tracer for transistors | 1957 |
| 581 | Tektronix | Oscilloscope | 100 (95) MHz oscilloscope | 1959 |
| 581A | Tektronix | Oscilloscope | 85 MHz oscilloscope | 1963 |
| 585 | Tektronix | Oscilloscope | 100 (95) MHz oscilloscope | 1959 |
| 585A | Tektronix | Oscilloscope | 85 MHz oscilloscope | 1963 |
| 60 | Tektronix | Plug-in | 1 MHz amplifier Plug-in | 1961 |
| 80 | Tektronix | Plug-in | vertical amplifier | 1959 |
| C | Tektronix | Plug-in | Dual-trace 8.5 (24) MHz amplifier | 1954 |
| CA | Tektronix | Plug-in | 24 MHz dual-channel amplifier | 1959 |
| Nelson-Ross PSA-021 | Nelson-Ross | Plug-in | 20 kHz Spectrum Analyzer plug-in | (?) |
| Q | Tektronix | Plug-in | Strain gauge preamp plug-in | 1960 |