- 1. [Amps] Re: Step-start calculation (score: 1)
- Author: <exray@bellsouth.net>
- Date: Sun, 21 Nov 2004 21:29:20 -0500
- Jeff' The magnitude of the current depends a great deal on the transformer type....for instance a fair size torroid, say 1 or 2 KVA will absolutely require some form of current limiting or you WILL t
- /archives//html/Amps/2004-11/msg00364.html (8,055 bytes)
- 2. [Amps] Outgassing tubes. (score: 1)
- Author: <exray@bellsouth.net>
- Date: Sat, 1 Oct 2005 09:36:16 -0400
- Wiil, For years it was and is common practice to outgas tubes by applying HV at low current i.e. one or two ma. till the tube arcs. Then reduce the HV a tad till the tube stops arcing. Leave the HV a
- /archives//html/Amps/2005-10/msg00007.html (6,527 bytes)
- 3. [Amps] Burning in...outgassing..whatever! (score: 1)
- Author: <exray@bellsouth.net>
- Date: Sun, 2 Oct 2005 11:58:08 -0400
- Folks, You may debate this forever. The technique has worked for 40 or 50 years. It is NOT a permanent fix. Something akin to using a cap to cure grid-cathode shorts. If ya gets lucky fine....if not
- /archives//html/Amps/2005-10/msg00039.html (6,904 bytes)
- 4. [Amps] Tek parts !! (score: 1)
- Author: <exray@bellsouth.net>
- Date: Mon, 6 Feb 2006 11:00:14 -0500
- Take a look at Sphere Research in Canada. They sell refurbed and calibrated Tek scopes. They also stock Tek parts including CRTs ans those pesky custom ICs. I got a 7904A from them.....it looks and p
- /archives//html/Amps/2006-02/msg00130.html (6,715 bytes)
- 5. Re: [Amps] The 'here's something' thread! (score: 1)
- Author: <exray@bellsouth.net>
- Date: Wed, 15 Feb 2006 20:53:27 -0500
- I suspect rather than 'rolling' in their graves; they are just chuckling softly. George W4IW _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contest
- /archives//html/Amps/2006-02/msg00276.html (6,458 bytes)
- 6. Re: [Amps] The ongoing 4CX250B verbage! (score: 1)
- Author: <exray@bellsouth.net>
- Date: Mon, 3 Apr 2006 22:00:17 -0400
- 4CX250B tubes will reliably run 500W out for a pair( observe the AN/URC-32 or its commercial cousin the KWT-6). If you must have more try three, as I recall, (AN/ARC-58 or TRC-75). This was 1 KW outp
- /archives//html/Amps/2006-04/msg00029.html (7,433 bytes)
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