P6202
The Tektronix P6202 is a 500 MHz active 10× FET probe with 50 Ω output impedance, introduced in 1976.
The 6202 has its own mains power supply, the 6202A (1980) has a LEMO S-series connector fitting the 7000-series scopes' probe power outlets.
Key Specifications
| Bandwidth | DC to 500 MHz (16 Hz lower limit with additional AC coupling tip) |
|---|---|
| Rise time | < 0.7 ns |
| Attenuation | 10 : 1 (100 : 1 with additional 10× attenuator tip, 010-0384-00) |
| Input impedance | 10 MΩ // 2 pF with or without additional 10× attenuator tip, +2 pF for AC coupling tip |
| Input range | ± 6 V (± 60 V with additional 10× attenuator tip) |
| DC offset | ± 55 V (± 200 V with additional 10× attenuator tip) |
| Max input | ± 200 V (nondestructive) |
| Cable length | 2 m (6.5') |
Links
Documents Referencing P6202
| Document | Class | Title | Authors | Year | Links |
|---|---|---|---|---|---|
| Tekscope 1976 V8 N2.pdf | Article | A New Low-cost 500 MHz Probe | Ron Lang | 1976 | P6202 |
Internals
An initial 8 MΩ : 2 MΩ divider drives a dual JFET (source follower + current source), a PNP emitter follower and finally an NPN emitter follower as a cable driver. These stages use SMD components located in the probe tip. The probe control box at the end of the coax only contains a ±7 V regulator, a switchable 50 Ω terminator, and the offset potentiometers that supply ±15 V to the bottom of the input divider. There is no input protection apart from the divider.
Compatible probe tip to coaxial adapters
- 017-0076-00 GR
- 017-0088-00 GR with internal 50 Ω Termination
- 031-0084-01 BNC
Pictures
P6202
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Carrying case
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Probe in case, with power supply, 10:1 pre-divider tip (010-0384-00), hook tip, AC coupling tip and connection box.
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Amplifier in probe tip (SMD components in 1976!)
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Amplifier in probe tip, reverse
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Connection box
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Schematic
P6202A
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Probe power connector
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Case exterior
Measurements
Rise time of a P6202 500 MHz FET probe measured on a 7S12 plugin in a 7844 mainframe (with 25 ps S-52 pulse generator head and 25 ps S-4 sampling head). Measured rise time ~440 ps observed on this specimen is equivalent to 795 MHz bandwidth.
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at 1 ns/Div
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at 100 ps/Div
