P410: Difference between revisions
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{{Probe Sidebar | |||
The '''Tektronix P410''' is a 10× passive voltage probe. Maximum voltage is 600 V peak-to-peak. | |manufacturer=Tektronix | ||
It connects to the scope with a [[UHF connector]]. | |model=P410 | ||
|summary= | |||
|image=P400-Series_Probes_1957.png | |||
|caption=P400 series catalog excerpt from 1957 | |||
|for=1 MΩ scope inputs | |||
|introduced=1955 | |||
|discontinued=(?) | |||
|manuals= | |||
* ''please add'' | |||
}} | |||
The '''Tektronix P410''' is a 10× passive voltage probe. Maximum voltage is 600 V peak-to-peak. It connects to the scope with a [[UHF connector]]. | |||
The "P400 Series" (not to be confused with the modern [[P400]] probe) also includes P405 (5x), P420 (20x), P450 (50x), P450-L (50x extra low capacitance), and P4100 (100x). | The "P400 Series" (not to be confused with the modern [[P400]] probe) also includes P405 (5x), P420 (20x), P450 (50x), P450-L (50x extra low capacitance), and P4100 (100x). | ||
These probes were [[introduced in 1955]] along with the [[541|Type 541]] and [[545|Type 545]] scopes because at 30 MHz, the [[P510|P510A]]'s 50 Ω coax cable exhibited unacceptable ringing due to the impedance mismatch at the scope's 1 MΩ input. | These probes were [[introduced in 1955]] along with the [[541|Type 541]] and [[545|Type 545]] scopes because at 30 MHz, the [[P510|P510A]]'s 50 Ω coax cable exhibited unacceptable ringing due to the impedance mismatch at the scope's 1 MΩ input. | ||
The P400 uses a special cable with a very thin, high-resistance center conductor which creates a better impedance match. All subsequent high-impedance probes use this kind of cable. | |||
==Links== | ==Links== | ||
Revision as of 04:52, 18 August 2021
The Tektronix P410 is a 10× passive voltage probe. Maximum voltage is 600 V peak-to-peak. It connects to the scope with a UHF connector.
The "P400 Series" (not to be confused with the modern P400 probe) also includes P405 (5x), P420 (20x), P450 (50x), P450-L (50x extra low capacitance), and P4100 (100x).
These probes were introduced in 1955 along with the Type 541 and Type 545 scopes because at 30 MHz, the P510A's 50 Ω coax cable exhibited unacceptable ringing due to the impedance mismatch at the scope's 1 MΩ input.
The P400 uses a special cable with a very thin, high-resistance center conductor which creates a better impedance match. All subsequent high-impedance probes use this kind of cable.
Links
- US Patent 2883619, Electrical Probe. John Kobbe and Bill Polits. Filed February 1956. (PDF)