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21. [AMPS] SB-220 TUNE Cap Arcing (score: 1): Author: measures@vc.net (Rich Measures); Date: Wed, 14 Oct 98 02:57:15 -0800; To: <amps@contesting.com> However, R-sup is MOF, not carbon composition, so they are much more tolerant of overloads. The Matsushita 3w-rated MOF resistors we use in our suppressors will dissipate 1; /archives//html/Amps/1998-10/msg00163.html (13,334 bytes)
22. [AMPS] SB-220 TUNE Cap Arcing (score: 1): Author: measures@vc.net (Rich Measures); Date: Wed, 14 Oct 98 02:57:23 -0800; If the bandswitch is not wired correctly, the tank is going to be totally out of resonace and there would be very little RF across the Tune-C. Rich... R. L. Measures, 805-386-3734, AG6K, www.vcnet.c; /archives//html/Amps/1998-10/msg00165.html (9,659 bytes)
23. [AMPS] SB-220 TUNE Cap Arcing (score: 1): Author: km1h@juno.com (km1h@juno.com); Date: Wed, 14 Oct 1998 09:56:01 -0400; Changes to the input network were not part of my original suggestion. I would however start with plate circuit non-original mods and work my way back to the grid mods. Possibly a wrong value, open co; /archives//html/Amps/1998-10/msg00169.html (10,734 bytes)
24. [AMPS] SB-220 TUNE Cap Arcing (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Wed, 14 Oct 98 10:24:42 -0000; Well, first of all, I wasn't sure which input changes Bennet had originally done. Yes, you are correct, decreasing input VSWR should not correspond to the arcing. What my thought was (and I am grasp; /archives//html/Amps/1998-10/msg00172.html (10,938 bytes)
25. [AMPS] SB-220 TUNE Cap Arcing (score: 1): Author: measures@vc.net (Rich Measures); Date: Wed, 14 Oct 98 11:14:18 -0800; The resistance-wire grid-grounding suppressors I recommend for the 4-1000A/8166 do not increase or decrease the inductance in series with the grid. Such suppressors decrease the Q of the unavoidable; /archives//html/Amps/1998-10/msg00176.html (11,809 bytes)
26. [AMPS] SB-220 TUNE Cap Arcing (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Wed, 14 Oct 98 15:16:06 -0000; I am confused. First we were on the 3-500Z of these guys amp, now on the 4-1000A. Anyhow, Rich adding any kind of thin wire to a grid to ground path vs. having the grid directly grounded with a very; /archives//html/Amps/1998-10/msg00179.html (9,804 bytes)
27. [AMPS] SB-220 TUNE Cap Arcing (score: 1): Author: measures@vc.net (Rich Measures); Date: Wed, 14 Oct 98 17:56:49 -0800; The 8166 has a tricky screen grid resonance. The 3-500Z grid can be grounded with two resistance wire conductors of different lengths, at right angles to each other, using separate gnd lugs. The res; /archives//html/Amps/1998-10/msg00182.html (10,308 bytes)
28. [AMPS] SB-220 TUNE Cap Arcing (score: 1): Author: bohnovic@worldnet.att.net (John/K4WJ); Date: Wed, 14 Oct 1998 22:43:41 -0400; Just for the record guys, weth?er (we»¿?r) n. a castrated male sheep or goat Etymology [ME < OE, akin to Ger widder < IE base *wet-, year > etesian] ©1995 Zane Publishing, Inc. &co; /archives//html/Amps/1998-10/msg00184.html (9,745 bytes)
29. [AMPS] SB-220 TUNE Cap Arcing (score: 1): Author: bnorell@lge.co.kr (Norell Bennett W.); Date: Thu, 15 Oct 1998 8:43:23 EST; side you the inductance Hi Jon, Just a followup and maybe the epilogue.... I checked the resistors in the (resistor-nichrome wire) plate suppressors and they each read about 100 ohms as indicated. I; /archives//html/Amps/1998-10/msg00188.html (11,213 bytes)
30. [AMPS] SB-220 TUNE Cap Arcing (score: 1): Author: measures@vc.net (Rich Measures); Date: Thu, 15 Oct 98 07:39:23 -0800; ........ 150 grid mA per tube is roughly 10w of grid diss. The Eimac rating is 20w max.. They look ok to me. However, a better test would be sending 50wpm dits with a keyer and measuring pep watts ou; /archives//html/Amps/1998-10/msg00189.html (10,769 bytes)
31. [AMPS] SB-220 TUNE Cap Arcing (score: 1): Author: bnorell@lge.co.kr (Norell Bennett W.); Date: Thu, 15 Oct 1998 11:01:43 EST; america.lge.co.kr (8.8.4_hhk9703/8.6.9) with ESMTP id KAA24201 for <bnorell@america.lge.co.kr>; Thu, 15 Oct 1998 10:27:41 -0400 (EDT) mail.lge.co.kr (8.8.4_hhk9703/8.6.9) with ESMTP id XAA27278 for; /archives//html/Amps/1998-10/msg00190.html (13,764 bytes)
32. [AMPS] SB-220 TUNE Cap Arcing (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Thu, 15 Oct 98 16:36:22 -0000; My guess is this was your problem. Remember we are talking about fairly high voltages across an air gap. If that gap is small enough, the air will break down and arcing occur. Regardless, your amp n; /archives//html/Amps/1998-10/msg00197.html (9,001 bytes)
33. [AMPS] SB-220 TUNE Cap Arcing (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Thu, 15 Oct 98 16:38:43 -0000; Rich, He has nichrome suppressors in there that are supposedly of correct value. I think even those who think nichrome unecessary wil agree that they do add additional stability. So...what else can; /archives//html/Amps/1998-10/msg00198.html (8,655 bytes)
34. [AMPS] SB-220 TUNE Cap Arcing (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Thu, 15 Oct 98 16:47:32 -0000; Someone correct me if I am wrong, but "too light loading" refers to too much Load Capacitance if I remember correctly. Some people mistakenly think that this is the way to decrease the power output; /archives//html/Amps/1998-10/msg00199.html (8,502 bytes)
35. [AMPS] SB-220 TUNE Cap Arcing (score: 1): Author: measures@vc.net (Rich Measures); Date: Thu, 15 Oct 98 15:02:44 -0800; Increase Lsup (by squeezing turns together) and observe what happens. Rich... R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissi; /archives//html/Amps/1998-10/msg00201.html (8,337 bytes)
36. [AMPS] SB-220 TUNE Cap Arcing (score: 1): Author: km1h@juno.com (km1h@juno.com); Date: Fri, 16 Oct 1998 00:35:06 -0400; SNIP I would think that you would know the answer to that prior to offering so much information...... IF you own an amp why not run an experiment? Carl KM1H Some people mistakenly ___________________; /archives//html/Amps/1998-10/msg00206.html (9,522 bytes)

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