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Tektronix S-54
Pulse Generator
S-54 head

Compatible with 7000 and 3S series sampling heads

Produced from 1971 to 1989

(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Tektronix S-54 is a pulse generator head designed for use with the 7S12 as a long line TDR unit. It has a 1 ns risetime and variable pretrigger pulse output.

The pretrigger-to-main pulse jitter is specified to be 100 ps or less when the lead time is set to 120 ns. The output pulse is generated by a Schottky diode clamping circuit.

Key Specifications

Output +400 mV into 50 Ω (BNC), < 1 ns rise time, Pulse duration: 25 µs ± 2 µs
Pre-trigger output +200 mV into 50 Ω (BSM), 5 ns rise time, pre-trig time: 120 ns – 1 µs before main pulse, 20 ns duration; Jitter < 100 ps at 120 ns, < 1 ns at 1 µs



1979: $545 (~$2,100 in 2022 Dollars)

According to an internal memo, in 1979 annual sales were estimated at 32(!) units.