P80: Difference between revisions
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The '''Tektronix P80''' is an active probe that works only with the [[80|Type 80]] plug-in for the [[581]] and [[585]] oscilloscopes. | The '''Tektronix P80''' is an active probe that works only with the [[80|Type 80]] plug-in for the [[581]] and [[585]] oscilloscopes. | ||
The P80 | The P80 contains a [[6688|6688 (E180F) miniature RF pentode]], which functions as a phase splitter providing 93 Ω differential outputs, not a simple cathode-follower. | ||
{{BeginSpecs}} | {{BeginSpecs}} | ||
Revision as of 20:33, 19 September 2023
The Tektronix P80 is an active probe that works only with the Type 80 plug-in for the 581 and 585 oscilloscopes.
The P80 contains a 6688 (E180F) miniature RF pentode, which functions as a phase splitter providing 93 Ω differential outputs, not a simple cathode-follower.
Key Specifications
| Rise time | 3.5 ns in combination with Type 80 |
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| Bandwidth | DC to 100 MHz (from 25 Ω source) in combination with Type 80 |
| Deflection | 0.1 V/Div (fixed) without optional attenuators; 0.2/0.4/0.5/1/2/5/10/20/50/100/200/500/1000 V/Div with attenuators |
| Input impedance | 100 kΩ // <14 pF (including capacitive coupler, without attenuators) |
| Input voltage | max. 150 VDC in AC position; max. 600 VDC with optional capacitive coupler; max. 100 VDC when DC coupled (without optional attenuators) |
Pictures
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Vents for tube
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P80 attached to Model 80
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Amphenol 165-14 connector, plugs into Type 80
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Schematic
Some Parts Used in the P80
| Part | Part Number(s) | Class | Description | Used in |
|---|---|---|---|---|
| 6688 | 154-0215-00 | Vacuum Tube (Pentode) | miniature high-slope VHF/UHF pentode | P80 • 3T77 • 3T77A • 4S2A • 526 • TR-4602 |