464: Difference between revisions
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The 464 has a linear power supply. | The 464 has a linear power supply. | ||
The optional [[DM44]] multimeter attaches to the top of the instrument. | |||
==Specifications== | |||
[[Category:Specifications needed]] ''please add'' | |||
==Internals== | |||
The vertical signal path of the 464 starts with a rotary cam-operated compensated attenuator. | 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 source-follower made with a [[2N5911]] dual JFET, part number 151-1032-00. | ||
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Triggering in the 464 is done using STD704 4.7 mA 18 pF [[tunnel diodes]], | Triggering in the 464 is done using STD704 4.7 mA 18 pF [[tunnel diodes]], | ||
part number [[152-0125-00]] or [[152-0125-01]]. | part number [[152-0125-00]] or [[152-0125-01]]. | ||
The trigger amplifier is made of discrete BJTs and a [[155-0032-01]] amplifier IC, | The trigger amplifier is made of discrete BJTs and a [[155-0032-01]] amplifier IC, | ||
presumably an improved version of the [[155-0032-00]]. | presumably an improved version of the [[155-0032-00]]. | ||
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Serial numbers B010100 through B079999 use the [[154-0722-00]] CRT. | Serial numbers B010100 through B079999 use the [[154-0722-00]] CRT. | ||
Serial numbers B080000 and up use the [[154-0749-00]] CRT. | Serial numbers B080000 and up use the [[154-0749-00]] CRT. | ||
==Links== | ==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== | ==Pictures== | ||
Revision as of 10:23, 29 September 2014
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.
Specifications
please add
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.