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The Tektronix R293 is a pulse generator [[introduced in 1968]]  
{{Instrument Sidebar
for use with automated measurement systems  
|manufacturer=Tektronix
such as the [[240]] and [[R250]].   
|model=R293
The R293 contains an analog programmable power supply
|class=Pulse generator
and an analog programmable pulse generator.
|series=
The pulse is produced by an avalanche transistor
|summary=Programmable pulse generator
fed through a pulse shaper made of diode clamps
|image=Tek-r293.jpg
and [[snap-off diode|snap-off diodes]]. 
|caption=Tek R293
The output pulse amplitude is variable from 6 volts to 12 volts.
|introduced=1965
The voltage overshoot of the output pulse is less that 3%.
|discontinued=(?)
The risetime and falltime are 1 nanosecond or less.
|designers=Murlan Kaufman
|manuals=
* [[Media:070-0433-00.pdf|Tektronix R293 Manual]] (PDF)
* [https://w140.com/tek_r293_description.pdf Description of R293 from Tektronix Automated Testing Systems book] (PDF)
* [https://w140.com/tek_r293_1968_catalog.pdf Tektronix R293 in 1968 Catalog] (PDF)
}}
The '''Tektronix R293''' is a pulse generator [[introduced in 1965]] for use with automated measurement systems such as the [[240]] and [[R250]].   


The service procedure in the manual specifies the use of a [[661]]
The task of designing the R293 was inherited and completed by [[Murlan Kaufman]].
for adjustment of the pulse shaper.


Some instances of the R293 have an RF connector on the front panel
The R293 contains an analog programmable power supply and an analog programmable pulse generator.
while others have all of their connector on the rear panel.
The pulse is produced by an avalanche transistor fed through a pulse shaper made of diode clamps and [[snap-off diode|snap-off diodes]].
MOD 703M puts all input and output connectors of the R293 on the rear panel,
for use in automated testing systems.


* [http://w140.com/tek_r293.pdf Tektronix R293 Manual (PDF)]
The output pulse amplitude is variable from 6 V to 12 V.
* [http://w140.com/tek_r293_description.pdf Description of R293 from Tektronix Automated Testing Systems book (PDF)]
Overshoot of the output pulse is less that 3%, rise and fall time are 1 ns or less.  
* [http://w140.com/tek_r293_1968_catalog.pdf Tektronix R293 in 1968 Catalog (PDF)]


The service procedure in the manual specifies the use of a [[661]] for adjustment of the pulse shaper.
Some instances of the R293 have an RF connector on the front panel while others have all of their connector on the rear panel.
MOD 703M puts all input and output connectors of the R293 on the rear panel, for use in automated testing systems.
An R293 is normally programmed from an [[R250]].
The power supply output connector mates with a Bendix PC06A-8-4P-SR connector.
* [[Media:12-070-180554-1158107.pdf|Amphenol Miniature Cylindrical Connectors (PDF)]]
==Pictures==
<gallery>
<gallery>
Image:Tek-r293.jpg
Tek-r293.jpg
Image:Tek_r293_frontconn.jpg
Tek_r293_frontconn.jpg
<!--Tek r293 top.jpg-->
Tek r293 top2.jpg
Tek r293 top3.jpg
<!--Tek r293 top4.jpg-->
Tek r293 top5.jpg
Tek_r293_block.png|Block Diagram
Tek r293 pulse gen.png|Pulse Generator
Tek r293 pulse shaper.png|Pulse Shaper
Tek r293 prog power supply.png|Programmable Power Supply
Tek r293 pulse gen power supply.png|Pulse Generator Power Supply
</gallery>
</gallery>
[[Category:Introduced in 1965]]
[[Category:Pulse generators]]

Latest revision as of 11:25, 20 August 2021

Tektronix R293
Programmable pulse generator
Tek R293

Produced from 1965 to (?)

Manuals
Manuals – Specifications – Links – Pictures

The Tektronix R293 is a pulse generator introduced in 1965 for use with automated measurement systems such as the 240 and R250.

The task of designing the R293 was inherited and completed by Murlan Kaufman.

The R293 contains an analog programmable power supply and an analog programmable pulse generator. The pulse is produced by an avalanche transistor fed through a pulse shaper made of diode clamps and snap-off diodes.

The output pulse amplitude is variable from 6 V to 12 V. Overshoot of the output pulse is less that 3%, rise and fall time are 1 ns or less.

The service procedure in the manual specifies the use of a 661 for adjustment of the pulse shaper.

Some instances of the R293 have an RF connector on the front panel while others have all of their connector on the rear panel. MOD 703M puts all input and output connectors of the R293 on the rear panel, for use in automated testing systems.

An R293 is normally programmed from an R250.

The power supply output connector mates with a Bendix PC06A-8-4P-SR connector.

Pictures