1M1
The Tektronix TU-7/1M1/067-0521-00 is a letter series plug-in used for calibrating 500-series scopes.
It is a multifunction replacement for the Type P Pulser, the TU-2 Test Load, and the EP53A Gain Set Adaptor.
It is used for calibrating the mainframe's step response and gain, checking dual-trace operation, common mode rejection, and power supply regulation.
(500-series mainframes are designed to have 10 div/Volt response to differential signals from the plug-in, and zero response to common-mode signals.)
It contains a transistor multivibrator whose output is sharpened through Tektronix-made Gallium-Arsenide diodes (later production used silicon), a dual-trace circuit using 12AT7 and 6AL5 tubes, and various load resistors. It does not have the Type P's short operating life because it does not use a mercury switch.
This instrument went through several names. At its 1964 introduction, it was the TU-7. Some early Tektronix internal instruments for design, manufacturing, and calibration had TU (Test Unit) nomenclature. (Other examples include the TU-75B Variac, and the TU-50 sine/square/pulse generator.)
In 1965, it was renamed Type 1M1 to fit into the letter-series nomenclature. Later still, the 067- calibration fixture naming system took hold and it was rechristened 067-0521-00.
The instrument was also revised once - more pulse frequencies - and the name upgraded to 067-0521-01.
It does not appear - under any name - in any Tektronix catalog, but the 1964 catalog does list a cousin: Type 10/11M1, for the Type 647 scope.
Links
- 067-0521-01 @ radiomuseum.org
Pictures
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067-0521-00
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1M1 Front
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1M1 RHS
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1M1 LHS
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TU-7 variant with five repetition rates
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TU-7 variant with five repetition rates
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TU-7 variant with five repetition rates
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TU-7 variant with five repetition rates
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TU-7 variant with five repetition rates
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067-0521-01 Front
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067-0521-01 LHS
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067-0521-01 RHS
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067-0521-01 Top
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067-0521-01 Bottom
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067-0521-01 Schottky Diodes (pulse generator)
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067-0521-01 Vertical amp step response test on a 547
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067-0521-01 Chopped trace test signal
Components
Some Parts Used in the 1M1
| Part | Part Number(s) | Class | Description | Used in |
|---|---|---|---|---|
| 12AT7 | 154-0039-00 | Vacuum Tube (Dual Triode) | dual high-gain triode | 161 • 180 • 310 • 310A • 315 • 316 • 360 • 502 • 502A • 511A • 512 • 513 • 513D • 514 • 514AD • 514D • 516 • 524 • 529 • RM529 • 544 • 546 • 547 • 556 • 565 • 570 • 3A2 • 75 • 3A75 • 1M1 • A • B • C • G • H • K • L • ML • M • N • K • R • S • Z • Keithley 610B |
| 6AL5 | 154-016 • 154-0016-00 • 154-0038-00 | Vacuum Tube (Dual Diode) | high-perveance dual diode | 163 • 181 • 190 • 1M1 • 310 • 310A • 315 • 316 • 317 • 3B1 • 3B1S • 3B2 • 3B3 • 3B5 • 502 • 502A • 503 • 511 • 511A • 512 • 516 • 517 • 517A • 524 • 526 • 535 • 535A • 545 • 545A • 549 • 551 • 565 • 570 • 581 • 581A • 585 • 585A • C • T • Telequipment D52 • Telequipment D56 • Telequipment S52 |