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Total 18 documents matching your query.

1. [AMPS] SB-220 cooling (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Mon, 08 Oct 2001 10:39:18 -0400; Well, I resoldered the pin yet again and thoroughly polished the filament pins, and so far the repair seems to be holding. The socket seems to be reasonably tight on the filament pins, so I hope it's; /archives//html/Amps/2001-10/msg00176.html (8,235 bytes)
2. [AMPS] SB-220 cooling (score: 1): Author: 2@vc.net (2); Date: Mon, 8 Oct 2001 12:23:13 -0700; To tighten the clip spring, slide it off, bend a bit, and snap it back on. Even though a socket feels tight when unplugging/plugging a tube, one pin could still be not tight. A good way to check a s; /archives//html/Amps/2001-10/msg00184.html (9,126 bytes)
3. [AMPS] SB-220 cooling (score: 1): Author: Peter.Chadwick@zarlink.com (Peter Chadwick); Date: Tue, 9 Oct 2001 08:02:36 +0100; FWIW, on 4-250As and similar, (same filament structure as the 3-500Z), not being careful about cooling the filament seals has led to trouble in my experience. Including one military rig where it was; /archives//html/Amps/2001-10/msg00220.html (8,263 bytes)
4. [AMPS] SB-220 cooling (score: 1): Author: k7dd@qwest.net (Mike Baker); Date: Thu, 11 Oct 2001 23:56:43 -0700; Hello Pete, I hope you are kidding about running your amp for any extended period of time with the case off; especially a contest. WHY? I can think of about 2600 to 2900 reasons why not too. Because; /archives//html/Amps/2001-10/msg00287.html (18,623 bytes)
5. [AMPS] SB-220 cooling (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Fri, 12 Oct 2001 08:16:09 +0100; --Original Message-- From: Mike Baker <k7dd@qwest.net> To: Pete Smith <n4zr@contesting.com> Cc: AMPS REFLECTOR <amps@contesting.com> To: <amps@contesting.com> Date: 12 October 2001 08:02 Subject: Re:; /archives//html/Amps/2001-10/msg00288.html (8,336 bytes)
6. [AMPS] SB-220 cooling (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Fri, 12 Oct 2001 06:41:40 -0400; To: <amps@contesting.com> Steve, the SB-220 has an internal cover that already accomplishes what you describe, with an interlock that shorts the HV to ground if it is removed. I probably won't need t; /archives//html/Amps/2001-10/msg00289.html (9,132 bytes)
7. [AMPS] SB-220 cooling (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Fri, 12 Oct 2001 13:18:23 +0100; --Original Message-- From: Pete Smith <n4zr@contesting.com> To: Steve Thompson <g8gsq@qsl.net>; amps@contesting.com <amps@contesting.com> To: <amps@contesting.com> Date: 12 October 2001 12:11 Subject; /archives//html/Amps/2001-10/msg00290.html (8,455 bytes)
8. [AMPS] SB-220 cooling (score: 1): Author: n2bc@stny.rr.com (n2bc@stny.rr.com); Date: Fri, 12 Oct 2001 11:53:15 GMT; Mike brings up an excellent point - "grabbing the wrong knob" Our club has an SB-220. It's used by all manner of folks & in the frenzy of a contest it gets lots of abuse. I found that changing the ba; /archives//html/Amps/2001-10/msg00291.html (8,836 bytes)
9. [AMPS] SB-220 cooling (score: 1): Author: 2@vc.net (2); Date: Fri, 12 Oct 2001 07:59:02 -0700; To: <amps@contesting.com> As I recall, with the 220's case off, there is no exposed 3kV. cheers, Steve - R. L. Measures, 805.386.3734, AG6K, www.vcnet.com/measures. end -- FAQ on WWW: http://www.con; /archives//html/Amps/2001-10/msg00297.html (9,280 bytes)
10. [AMPS] SB-220 cooling (score: 1): Author: w8ik@subich.com (Joe Subich, K4IK); Date: Fri, 12 Oct 2001 11:12:55 -0400; Unless I'm mistaken, the "business end" of the capacitor bank and the bleeder string are exposed just behind the right side of the front panel (behind the meters). I don't recall any shield between t; /archives//html/Amps/2001-10/msg00298.html (8,453 bytes)
11. [AMPS] SB-220 cooling (score: 1): Author: 2@vc.net (2); Date: Fri, 12 Oct 2001 09:47:28 -0700; // Surely. So what kind of a schmo is going to slide his hand down into the HV supply? With part of the hand touching gnd, loosing part of a finger would be the likely result. Even with the case on,; /archives//html/Amps/2001-10/msg00302.html (9,220 bytes)
12. [AMPS] SB-220 cooling (score: 1): Author: w8ik@subich.com (Joe Subich, K4IK); Date: Fri, 12 Oct 2001 14:35:48 -0400; All it takes is an unintentional "slip" during a contest (knock something off an adjacent shelf). That's the point ... not that someone will intentionally reach into that area ... but that it is ope; /archives//html/Amps/2001-10/msg00305.html (9,346 bytes)
13. [AMPS] SB-220 cooling (score: 1): Author: 2@vc.net (2); Date: Fri, 12 Oct 2001 14:17:51 -0700; How does the something that falls touch the filter cap assy and simultaneously touch the contest operator? What if lightning strikes the antenna? Cheers, Joe - R. L. Measures, 805.386.3734, AG6K, ww; /archives//html/Amps/2001-10/msg00308.html (9,429 bytes)
14. [AMPS] SB-220 cooling (score: 1): Author: w8ik@subich.com (Joe Subich, K4IK); Date: Fri, 12 Oct 2001 18:23:18 -0400; As usual, when shown to be wrong you point in a different direction. Without the case, lethal voltages are exposed in the SB-200. If the operator is careful, it is not a problem. If the operator is; /archives//html/Amps/2001-10/msg00311.html (8,612 bytes)
15. [AMPS] SB-220 cooling (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Fri, 12 Oct 2001 21:21:56 -0400; True example. I was working on a HV supply with a resonant choke, and got the choke on the low side or resonance. When I turned the supply on with a meter attached, it blew a 20 or 30kV rated test l; /archives//html/Amps/2001-10/msg00312.html (8,662 bytes)
16. [AMPS] SB-220 cooling (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Fri, 12 Oct 2001 21:28:47 -0400; This is wrong. I'm sitting here looking at the top of my SB-220 with the cosmetic cover off. There are no gaps in the perforated aluminum shield over the entire top of the amplifier. I would never ha; /archives//html/Amps/2001-10/msg00313.html (8,722 bytes)
17. [AMPS] SB-220 cooling (score: 1): Author: 2@vc.net (2); Date: Fri, 12 Oct 2001 18:59:33 -0700; // I looked at my SB-220 before I wrote the "wrong" reply. // As in sloppy from too many 811s? Cheers, Joe - R. L. Measures, 805.386.3734, AG6K, www.vcnet.com/measures. end -- FAQ on WWW: http://www; /archives//html/Amps/2001-10/msg00314.html (8,625 bytes)
18. [AMPS] SB-220 cooling (score: 1): Author: 2@vc.net (2); Date: Fri, 12 Oct 2001 19:14:16 -0700; Groupies will say/recall virtually anything to please their leader and vice-versa. It's a symbiotic relationship. cheers, Pete - R. L. Measures, 805.386.3734, AG6K, www.vcnet.com/measures. end -- FA; /archives//html/Amps/2001-10/msg00315.html (8,089 bytes)

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