155-0137-00

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155-0137-00 in P6451 probe

The Tektronix H493  (P/N 155-0137-00) is a pre-amp/comparator hybrid integrated circuit in a ceramic package. It was designed by Oscar Olson.

Channel equivalent circuit (click to enlarge)

It contains five comparators made of dual JFET dies feeding comparators with differential ECL outputs using commercial MC10216 dies (156-0775-00) that can drive terminated 100 Ω twisted-pair lines. The instrument input would contain differential ECL receivers like the MC10115 or MC10216.

See also

Used in

Some instruments using part 155-0137-00

Instrument Manufacturer Class Model Description Introduced
P6451 Tektronix Probe P6451 8+1-channel logic analyzer probe 1977
P6452 Tektronix Probe P6452 100 MHz, 8-channel probe 1982
P6458 Tektronix Probe P6458 4-channel control input probe (?)

Datasheet