067-506

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Tektronix 067-506
Constant-amplitude signal generator
Tektronix 067-506 front

Produced from (?) to 1966

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

The Tektronix 067-506 (aka 067-0506-00) is a constant-amplitude signal generator for oscilloscope calibration. It was replaced by the 191 in 1966.

Key Specifications

Frequency range 50 kHz fixed, 0.35 − 100 MHz in 7 ranges
Output 2–6 V into 50 Ω, GR-874 connector

Links

Documents Referencing 067-506

(no results)

Internals

The 067-506 contains a feedback loop that maintains constant RF amplitude at the output connector regardless of small variations in load or internal variations, e.g., as the unit warms up. This is accomplished by using an envelope detector to measure the peak-to-peak output voltage, and using the envelope signal as feedback to set the plate voltage of the Colpitts RF oscillator, thereby controlling its swing.

Unlike later instruments like the 190 and SG504 that put the envelope detector in an output head, the 067-506 cannot compensate for variable losses in the output cable.

The +450 V power supply in the 067-506 is unregulated. The instrument relies on the RF feedback loop to maintain stability of the RF output voltage with respect to line voltage variation.

Pictures

Components

Some Parts Used in the 067-506

Part Part Number(s) Class Description Used in
6DJ8 154-0187-00 154-0305-00 Vacuum Tube (Dual Triode) dual triode 067-506 111 132 161 310A 316 317 502 502A 503 504 506 515 516 519 526 529 RM529 533 535 536 543 544 545 545A 545B 546 547 549 555 556 561A 561S 564 565 567 581 581A 585 585A 661 1A4 1S1 60 2A60 63 2A63 67 2B67 3A1 3A1S 3A2 3A3 3A6 3A7 72 3A72 75 3A75 4S2 51 3B1 3B1S 3B2 3B3 3B4 3M1 3S76 3T77 3T77A 9A1 9A2 1121 80 81 82 86 B O W Z Telequipment D56 Telequipment S32A Telequipment D52 S-311 Telequipment TD51 Telequipment S52 Telequipment S51 Telequipment Type A TU-4
7119 154-0340-00 Vacuum Tube (Dual Triode) dual triode 067-506 067-0532-00 191 3A3 3B4 3B5 516 545B 549 661 Chemtrix 205