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Tektronix P6407
Word recognizer probe
Tektronix P6407

Compatible with 2430A 2432A 2440 2445

Produced from (?) to (?)


Manuals – Specifications – Links – Pictures

The Tektronix P6407 is a 17-bit Word Recognizer Probe for the 2445 Opt. 09, 2465 Opt. 09, 2430A Opt. 03, 2432A Opt. 03 and 2440 Opt. 03 scopes.

It connects to the scope through a 6-pin LEMO S-series connector on the rear panel.

The P6407 uses the P64xx-family 10-wire input lead harnesses with 0.2" connectors. It is also possible to use standard jumper wires with pins, sockets or clips on the other end for connecting inputs.

Key Specifications

Input voltage −0.5 V to 5.5 V Peak max.
Input current 20 μA max. at 2.7 V, 0.6 mA max. at 0.5 V
Speed Up to 10 MHz without external clock, 20 MHz with external clock
Features 17-bit, TTL Compatible


The scope sends configuration data (compare and don't care bits) through a shift register made from five 74C164s, similar to the P6406. Signal inputs go to 74F00 gates through 300 Ω resistors, 74F521 comparators test the input bits and a 74F02 drives the cable.