464: Difference between revisions

Revision as of 11:48, 23 December 2021

Tektronix 464
Portable 100 MHz dual-trace storage scope Tektronix 464 front Produced from 1975 to 1985 Manuals Tektronix 466/464 Operators Manual (PDF, OCR) Tektronix 464 Service Manual (PDF, OCR) Tektronix 464 Schematics (PDF, color, OCR, bad-OCR) Tektronix 464 and 466 Option 10 Service Supplement Modifications U3165 Replacement (All manuals in PDF format unless noted otherwise)

Manuals – Specifications – Links – Pictures

The Tektronix 464 is a portable 100 MHz dual-trace CRT storage scope with dual time bases. It is a lower cost version of the 466, with a slower writing speed and without the reduced scan feature. The 464 has a linear power supply.

The optional DM44 multimeter attaches to the top of the instrument.

Key Specifications

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Internals

The vertical signal path of the 464 starts with a rotary cam-operated compensated attenuator. Next is a source-follower made with a 2N5911 dual JFET, part number 151-1032-00. Next is a discrete BJT-based preamp followed by diode-based channel switching and delay driver. The final vertical amplifier, U464, is the 155-0155-00. The 155-0077-01 is listed as an alternative part for U464.

Triggering in the 464 is done using STD704 4.7 mA 18 pF tunnel diodes, part number 152-0125-00 or 152-0125-01. The trigger amplifier is made of discrete BJTs and a 155-0032-01 amplifier IC, presumably an improved version of the 155-0032-00.

The horizontal amplifier is made of discrete BJTs.

Serial numbers B010100 through B079999 use the 154-0722-00 CRT. Serial numbers B080000 and up use the 154-0749-00 CRT.

Links

Tektronix 464 storage modes - YouTube

Pictures

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internal view
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internal view

Custom ICs used in the 464

Page	Model	Part nos	Description	Designers	Used in
155-0032-00	M55	155-0032-00 • 155-0032-01	variable-gain transconductance amplifier (voltage in, current out)	Roy Hayes • Einar Traa	335 • 464 • 465 • 465B • 466 • 475 • 475A • 475M • 634 • 650 • 651 • 652 • 653 • 655 • 656 • 670 • 671 • 7A12 • 475 • FG504 • 1440 • 1460 • 1480 • 1481 • 1482 • 1485
155-0049-00	M079G	155-0049-00 • 155-0049-01 • 155-0049-02	sweep control with lockout	Bill DeVey	335 • 464 • 465 • 466 • 475 • 475A • 475M • 485 • 5B31 • 5B40 • 5B52 • 5B42 • 5B44 • 7B53A • 7B80 • 7B85 • 7B87 • 7B92A • 7B90P • 7B10 • 7B15 • SC502 • 7B42N • AN/USM-281C • 067-0657-00
155-0077-00	155-0077-00	155-0077-00 • 155-0077-01	vertical output amplifier		335 • 464 • 465 • 466 • 7704A
155-0078-00	M084	155-0078-xx • 155-0273-00 • 155-0274-00	broadband amplifier	John Addis	464 • 465 • 466 • 468 • 475 • 475A • 475M • 485 • 7834 • 7844 • 7854 • 7904 • R7903 • R7912 • 7912AD • 7912HB • 7104 • 7A16A • 7A16P • 7A24 • 7A26 • 7A42 • 067-0587-01 • 067-0680-00 • AM503 • PG502 • PG508 • DC510 • DC5010 • FG5010
155-0115-00	155-0115-00	155-0115-00	vertical amplifier		335 • 464 • 465 • 465B • 466 • 468

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 ==Links==
 * [http://www.youtube.com/watch?v=gIUE4Lz9e8U Tektronix 464 storage modes - YouTube]
-* [http://w140.com/kurt/tek.html Kurt's Tektronix page - 464 repair]
 ==Pictures==