132

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Tektronix 132
Module power supply
Tek 132

Produced from 1961 to (?)

Manuals
Manuals – Specifications – Links – Pictures

The Tektronix 132 is an external enclosure, power supply, and amplifier for a letter-series or 1-series plug-in. It was introduced in 1961.

The 132 supplies power to the plug-in and the signal output of the plug-in (i.e., at pins 1 and 3 of the plug-in's rear connector) is amplified by the three-stage DC-to-16 MHz all-tube differential amplifier in the 132. The resulting vertical signal is available on the front panel of the 132 either using UHF connectors (early 132 versions) or BNC connectors (late 132 versions).

The 132's power supply is similar to Tektronix oscilloscopes of the late 1950s and early 1960s. The rectifier diodes are solid state, but the regulators are tube. An OG3 tube is used to generate a -150 V reference voltage that is used for all of the other regulated voltages. The +225 V and +350 V supplies are floating supplies stacked on top of the +189 V unregulated DC that feeds the +100 V supply. The 132 has a fan that is always on when the power is on, and a 137 °F (58 °C) thermal cutoff for the rest of the circuitry.

The differential front panel output of the 132 has an output impedance of about 5 kΩ per side. The gain and bandwidth of the entire system (plug-in + 132 + load) depend on the load impedance. For exact gain, the 132 needs to be terminated with an exact impedance. A load impedance of 93 Ω maximizes bandwidth and further reductions of load impedance only reduce the available output swing. A load impedance of 50 kΩ maximizes gain and further increases in load impedance have little effect on system performance.

Pictures


Some Parts used in the 132

Page Class Description Used in
6080 Vacuum Tube (Double Triode) twin power triode 132 535 535A RM35A 541 541A 535 545 545A 545B 546 547 549 575 581 581A 585 585A
6AW8 Vacuum Tube (Triode/Pentode) triode-pentode combo 132 541 535 545
6CL6 Vacuum Tube (Pentode) miniature power pentode 132 515 524 525 531 535 535A 545 545A 545B 549 581 581A 585 585A 3A74
6CW5 Vacuum Tube (Pentode) power pentode 132 547
6DJ8 Vacuum Tube (Double Triode) dual triode 132 502 502A 503 504 515 516 519 533 535 543 544 545 545A 545B 546 547 549 555 556 565 581 581A 585 585A 661 2A60 2A63 3A8 1121 1A4 67 81 82 86 3B1 3B4 O Telequipment S32A Telequipment D52 Telequipment S52 Telequipment S51 Telequipment Type A
6EW6 Vacuum Tube (Pentode) pentode 132 527 581 581A 585 585A
6G11 Vacuum Tube (Pentode) double sharp cut-off beam power pentode 125 132 519 067-0502-01 067-0551-00
6GE8 Vacuum Tube (Triode/Pentode) triode-pentode combo 125 132
7233 Vacuum Tube (Triode) low-mu triode 132
7734 Vacuum Tube (Triode/Pentode) triode-pentode combo 125 132