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284: Difference between revisions
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Only one mode can be used at a time. The pulse comes out one output connector. The sine wave and square wave come out another output connector. Both outputs are 50 Ω [[GR-874]]. | Only one mode can be used at a time. The pulse comes out one output connector. The sine wave and square wave come out another output connector. Both outputs are 50 Ω [[GR-874]]. | ||
==Links== | |||
* [https://www.youtube.com/watch?v=8kweJOFoi1g Zenwizard Studios - Unit I rebuild including Airline and D-180] | |||
* [https://www.youtube.com/watch?v=xvBzUflcYmE Zenwizard Studios - Unit I rebuild including Airline and D-180 testing on Tek 577] | |||
{{Documents|Link=284}} | |||
{{PatentLinks|284}} | |||
==See Also== | |||
* [[284-based PPPG]] | |||
* [http://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_other/284.html Tek 284 page at amplifier.cd] with detailed internals and repair/cal report | |||
* [https://shaunmerrigan.info/electronics/tektronix-284-pulse-generator-repair/ Tek 284 Repair at shaunmerrigan.info] Photos of TD and output waveforms | |||
==Internals== | |||
The 284 generates a 1 GHz sinewave using a [[2N3478]] RF NPN transistor-based oscillator. | The 284 generates a 1 GHz sinewave using a [[2N3478]] RF NPN transistor-based oscillator. | ||
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Modification kit [[040-0487-00]] changes the times selectable with the lead time switch. | Modification kit [[040-0487-00]] changes the times selectable with the lead time switch. | ||
==Pictures== | ==Pictures== | ||