432

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Tektronix 432
25 MHz dual trace portable scope
Tektronix 432

Produced from 1971 to (?)

Manuals
Manuals – Specifications – Links – Pictures

The Tektronix 432 is a 25 MHz dual-trace portable solid-state oscilloscope.

There is also a rack-mount version, the R432.

Each 432 vertical signal path starts with the coupling switch, then a rotary cam attenuator, then a dual-JFET source-follower buffer amp, then a 155-0050-00 differential amplifier (switched to 155-0050-01 after serial number B239999).

The vertical and horizontal output amplifiers are fully discrete, using silicon bipolar transistors.

Triggering is done by a 4.7 mA tunnel diode that is fed by a discrete trigger amplifier.

The 432 consumes 55 watts maximum and weighs 20 pounds.

P31 phosphor was standard. P7 was also available.

Specifications

please add

Links

Pictures

Custom ICs used in the 432

Page Class Manufacturer Model Part nos Description Designers Used in
155-0028-00 Monolithic integrated circuit Tektronix M018 155-0028-00 155-0028-01 155-0042-00 155-0042-01 155-0042-02 155-0042-03 Miller integrator and delay pickoff Joe Burger 5030 R5030 5031 R5031 1401 1401A 1480 1481 1482 1485 26G1 26G2 26G3 314 335 432 434 4701 5B10N 5B12N 5B31 5B40 5B42 5S14N 7B52 7B53A 7B53N 7L12 7L13 7L14 7L18 7S14 AN/USM-281C RG501
155-0048-01 Monolithic integrated circuit Tektronix M052F 155-0048-00 155-0048-01 155-0055-00 155-0055-01 trigger sweep Dave Allen 211 212 213 214 432 433 5B12N 5B13N 5L4N 603 604 605 606 607 624 SC501 R7912
155-0050-01 Monolithic integrated circuit Tektronix M065 155-0050-00 155-0050-01 differential vertical preamplifier Bert TenKate 432 434
155-0051-00 Monolithic integrated circuit Tektronix 155-0051-00 155-0051-00 Z-axis and HV regulator 432 434