4S2 Pulser: Difference between revisions

561 bytes added ,  19 December 2019
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The '''Tektronix 4S2 Pulser''' is a portable fixture used for field texting of the [[4S2|4S2 dual-channel sampling plug-in]] (for the [[661]] scope).
It is run off a pair of 22.5 V batteries.  A 100 kHz oscillator built with a [[2N964]] transistor drives a 100 mA, 6 pF [[tunnel diode]]. 
The output signal is delayed by 30 ns through a length of RG-174 cable to allow for pre-triggering.
The 4S2 is supposed to display a rise time of no more than 105 ps using this pulser.
==Links==
* [[Media:Tek 4s2 pulser.pdf|Tektronix 4S2 Pulser Description (PDF, needs OCR)]]
* [[Media:Tek 4s2 pulser.pdf|Tektronix 4S2 Pulser Description (PDF, needs OCR)]]
[[Category:Calibration fixtures]]
[[Category:Pulse generators]]