0G3
The 0G3 (European: 85A2) (P/N 154-0291-00) is an 85 V voltage reference tube with a miniature B7G 7-pin base. It is very similar to the 5651 but has a wider current range, specified as 1–10 mA, and tighter voltage rating, 85±2 V at the recommended 6 mA vs the 5651's 87±5 V. Socket pinout is identical.
Note: The designation is 0G3, the leading zero indicating a tube without a heater, although this is often mis-printed as OG3.
It is used in the 132, 506, 547, and 560, among others.
| Aged/Checked/Matched Pair Details | ||
|---|---|---|
| Used in | Tek Part# | S/N Range |
| Z | 157-0064-00 | All |
| 661 | 157-0067-00 | All |
Reference:
Links
Pictures
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0G3 inside a 547
Used in
Some instruments using part 0G3
| Instrument | Manufacturer | Class | Model | Description | Introduced |
|---|---|---|---|---|---|
| 132 | Tektronix | Power supply | 132 | Module power supply | 1961 |
| 506 | Tektronix | Oscilloscope | 506 | 20 MHz scope | 1964 |
| 547 | Tektronix | Oscilloscope | 547 | 50 MHz oscilloscope | 1964 |
| 560 | Tektronix | Oscilloscope | 560 | 1 MHz scope | 1961 |
| 561 | Tektronix | Oscilloscope | 561 | 10(4) MHz "General Purpose Scope" | 1961 |
| 561A | Tektronix | Oscilloscope | 561A | 10(4) MHz "General Purpose Scope" | 1962 |
| 564 | Tektronix | Oscilloscope | 564 | Split-Screen Storage Scope | 1962 |
| 565 | Tektronix | Oscilloscope | 565 | 10 MHz dual-beam scope | 1962 |
| 567 | Tektronix | Oscilloscope | 567 | Sampling scope | 1962 |
| 661 | Tektronix | Oscilloscope | 661 | Sampling scope | 1961 |
| Keithley 610 | Keithley | Multimeter | 610 | Electrometer | 1960 |
| TU-4 | Tektronix | Plug-in | TU-4 | 560 Series test load plug-in | 1961 |
| Z | Tektronix | Plug-in | Type Z | Comparator preamp plug-in | 1960 |