6197
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The 6197 (P/N 154-0146-00) is a 7.5 W power pentode vacuum tube with a B9A (Noval) miniature 9-pin base. It is similar to the 6CL6 but rated for "on-off control applications involving long periods of operation under cutoff conditions", meaning that its cathode resists forming an interface layer. This is valuable even in always-on locations like the 535 vertical amplifier, where an interface layer would reduce low frequency gain.
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Used in
Some instruments using part 6197
| Instrument | Manufacturer | Class | Model | Description | Introduced |
|---|---|---|---|---|---|
| 3A75 | Tektronix | Plug-in | 3A75 | 4 MHz amplifier plugin | 1964 |
| 516 | Tektronix | Oscilloscope | 516 | 15 MHz dual-trace scope | 1960 |
| 531 | Tektronix | Oscilloscope | 531 | 10 MHz oscilloscope | 1954 |
| 533 | Tektronix | Oscilloscope | 533 | 15 MHz oscilloscope | 1958 |
| 535 | Tektronix | Oscilloscope | 535 | 10 (15) MHz dual-timebase scope | 1954 |
| 547 | Tektronix | Oscilloscope | 547 | 50 MHz oscilloscope | 1964 |
| 556 | Tektronix | Oscilloscope | 556 | 50 MHz dual beam scope | 1966 |
| 75 | Tektronix | Plug-in | 75 | 4 MHz amplifier plug-in | 1961 |
Photos
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Raytheon 6197
