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422: Difference between revisions
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a current pulse in the secondary of T401. The secondary of T401 feeds another tunnel diode, | a current pulse in the secondary of T401. The secondary of T401 feeds another tunnel diode, | ||
D405, and the current pulse switches D405 to the high-voltage state, which starts a sweep. | D405, and the current pulse switches D405 to the high-voltage state, which starts a sweep. | ||
The 8056 Nuvistor used in the input amplifier of the 422 can be replaced by a [[MPF102]] JFET. | |||
* [http://w140.com/tek_422.pdf Tektronix 422 Manual (PDF)] | * [http://w140.com/tek_422.pdf Tektronix 422 Manual (PDF)] | ||