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Tektronix P500CF
Cathode-Follower Probe
Tektronix P5000CF

Compatible with 524AD

Produced from (?) to (?)


Manuals – Specifications – Links – Pictures

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.

Key Specifications

Rise time 13 ns (17.5 ns with 10x attenuator); P500CF with 545A and Type K plug-in


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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