P170CF: Difference between revisions

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[[File:Tek p170cf.jpg|thumb|350px|right]]
The '''Tektronix P170CF''' is a cathode-follower probe intended for use with the [[517|517 scope]], or a [[128|Type 128 power supply]].
The '''Tektronix P170CF''' is a cathode-follower probe intended for use with the [[517|517 scope]], or a [[128|Type 128 power supply]].
It came with three attenuator heads.
It came with three attenuator heads.


The P170CF uses a [[5718]] triode.   
The P170CF uses a [[5718]] triode.  It requires a 170 Ω termination which is built into the 517 and needs to be externally connected for other instruments (the ''B170-R'' terminator with [[UHF connector]]s was available for this).


{{BeginSpecs}}
{{BeginSpecs}}
{{Spec | Attenuation |  ×2 basic, PAX-1 head ×4 to ×40, PAX-2 head ×20 to ×200, PAX-3 head ×200 to ×2000 }}
{{Spec | Attenuation |  
{{Spec | Input impedance | 12 MΩ // 5 pF with attenuators }}
* Without attenuator: ×2
* With PAX-1 head: ×4 to ×40
* With PAX-2 head: ×20 to ×200
* With PAX-3 head: ×200 to ×2000 }}
{{Spec | Input impedance | With attenuators: 12 MΩ // 5 pF @ min att. − 1.2 pF @ max. att. }}
{{EndSpecs}}
{{EndSpecs}}
==Links==
* The P170CF is discussed in the [[Media:070-063.pdf|Tektronix Type 128 manual (PDF)]]


==Pictures==
==Pictures==
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Tek p170 1961 cat.png
Tek p170 1961 cat.png
</gallery>
</gallery>
{{Parts|P170CF}}




[[Category:Active Oscilloscope Probes]]
[[Category:Manual needed]]
[[Category:Active oscilloscope probes]]

Revision as of 13:08, 13 July 2022

The Tektronix P170CF is a cathode-follower probe intended for use with the 517 scope, or a Type 128 power supply. It came with three attenuator heads.

The P170CF uses a 5718 triode. It requires a 170 Ω termination which is built into the 517 and needs to be externally connected for other instruments (the B170-R terminator with UHF connectors was available for this).

Key Specifications

Attenuation
  • Without attenuator: ×2
  • With PAX-1 head: ×4 to ×40
  • With PAX-2 head: ×20 to ×200
  • With PAX-3 head: ×200 to ×2000
Input impedance With attenuators: 12 MΩ // 5 pF @ min att. − 1.2 pF @ max. att.

Links

Pictures


Some Parts Used in the P170CF

Part Part Number(s) Class Description Used in
5718 154-0053-00 Vacuum Tube (Triode) subminiature high-frequency triode 321 P500CF P170CF