P500CF
The Tektronix Type P500CF is a cathode-follower probe. It uses a 5718 triode.
It requires +120 VDC for the plate supply and +6.3 VDC for the heater, which can be provided by an oscilloscope (e.g. 517), amplifier (e.g. 1121) or external probe power supply like the 128.
The P500CF is discussed in the Type 128 manual.
Manual
Key Specifications
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Pictures
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Some Parts Used in the P500CF
| Part | Part Number(s) | Class | Description | Used in |
|---|---|---|---|---|
| 5718 | 154-0053-00 | Vacuum Tube (Triode) | subminiature high-frequency triode | 321 • P500CF • P170CF |