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Tektronix Type Q
Strain gauge preamp plug-in Type Q front view Compatible with 500-series scopes Produced from 1960 to 1973 Manuals Tektronix Type Q Manual Tektronix Type Q Manual @ BAMA Tektronix Type Q Factory Calibration Procedure (OCR) (All manuals in PDF format unless noted otherwise)

Manuals – Specifications – Links – Pictures

The Tektronix Type Q is a transducer and strain gauge preamp plug-in for 500-series scopes.

It can work with resistive, capacitive, or inductive transducers or strain gauges that are attached via an Amphenol 165-15 connector.

The plug-in contains a 25 kHz oscillator that is used to drive a Wheatstone bridge. This AC excitation / demodulation principle limits signal bandwidth to 6 kHz.

Type Q was introduced in 1960 and was the last all-tube plug-in. It was dropped after 1972.

Key Specifications

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Links

Documents Referencing Q

Document	Class	Title	Authors	Year	Links
062-0710-00.pdf	Book	Strain Gage Measurement Concepts	Les Hurlock	1966	Transducers • Q

Pictures

Front view
Top view.
Left view.
Right view.
Bottom view.
Block Diagram
Schematic
Rotan plug-in prototype, likely led to Type Q

Components

Some Parts Used in the Q

Part	Part Number(s)	Class	Description	Used in
12AU7	154-041 • 154-0041-00 • 154-0287-00	Vacuum Tube (Dual Triode)	dual medium-μ triode	104 • 104A • 122 • 160 • 161 • 162 • 181 • 190 • 310 • 310A • 316 • 317 • 3C66 • 502 • 502A • 507 • 511A • 512 • 516 • 517 • 517A • 524 • 526 • 535 • 536 • 545 • 545A • 545B • 547 • 549 • 555 • 561 • 564 • 570 • 575 • 581 • 581A • 585 • 585A • C • D • E • N • Q • Hickok 1825
12AX7	154-043 • 154-0043-00	Vacuum Tube (Dual Triode)	dual triode	3C66 • 513 • 524 • 531 • 531A • 535 • 536 • 545 • 545A • 545B • 546 • 547 • 549 • 555 • 570 • 581 • 581A • 585 • 585A • E • Q • Hickok 1825
6AU6	154-0022-00 • 157-0073-00 • 157-0059-00 • 154-0284-00	Vacuum Tube (Pentode)	RF pentode	107 • 160 • 181 • 190 • 60 • 2A60 • 72 • 3A72 • 3C66 • 310 • 310A • 316 • 317 • 360 • 502 • 502A • 506 • 511 • 511A • 512 • 513 • 516 • 517 • 517A • 524 • 526 • 529 • RM529 • 531 • 531A • 535 • 536 • 545 • 545A • 546 • 547 • 549 • 555 • 561 • 561A • 561S • 564 • 565 • 567 • 570 • 575 • 581 • 581A • 585 • 585A • 80 • C • CA • Q
6CG7	154-0134-00	Vacuum Tube (Dual Triode)	dual triode	3C66 • 575 • Q
8425	154-0022-07	Vacuum Tube (Pentode)	RF pentode	3A72 • 310A • 317 • 526 • Q

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