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1. [AMPS] gas test for tubes (score: 1): Author: jtml@lanl.gov (John T. M. Lyles); Date: Fri, 21 May 1999 17:42:17 -0600; I learned this from the people at Econco (tube rebuilders) for the 4CW250,000B tetrode a few years ago: Connect a variac to the filament transformer. Connect a 75 volt (can be variable) power supply; /archives//html/Amps/1999-05/msg00272.html (8,502 bytes)
2. [AMPS] gas test for tubes (score: 1): Author: Peter_Chadwick@mitel.com (Peter Chadwick); Date: Mon, 24 May 1999 12:15:40 +0100; Back in the mid 1960's, I worked on a tx that had a TWT in it - 10kW at about 5.6GHz. That had a vac ion pump, and we had trip points of 2, 25 and 100 microamps. In those days, the sensing circuits w; /archives//html/Amps/1999-05/msg00296.html (7,854 bytes)

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