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References: [ +from:carlseye@tampabay.rr.com: 346 ]

Total 346 documents matching your query.

181. Re: [Amps] HA-10 Warrior "Neutralizing Capacitor" (score: 1)
Author: "carl seyersdahl" <carlseye@tampabay.rr.com>
Date: Sun, 7 Sep 2003 16:41:40 -0400
Bill: I haven't seen an answer to your question here , but that "neutralizing " cap was one of a number of attempts to "neutralize " an amp which was already reasonably stable, and from what I've hea
/archives//html/Amps/2003-09/msg00068.html (8,866 bytes)

182. [Amps] tuning input (score: 1)
Author: "carl seyersdahl" <carlseye@tampabay.rr.com>
Date: Fri, 19 Sep 2003 08:12:10 -0400
In reading an amplifier manual it says to disconnect the hi-voltage , feed signal to the input in the normal way, dip the plate mtr. and adjust the input coils for min. swr.! Is this a valid way to t
/archives//html/Amps/2003-09/msg00170.html (6,779 bytes)

183. [Amps] meter shunt (score: 1)
Author: "carl seyersdahl" <carlseye@tampabay.rr.com>
Date: Sat, 20 Sep 2003 13:26:37 -0400
I am repairing an FL2100B in which the powersupply went south, and I have found what appears to be the meter shunt burned out. (IP) It is a wirewound unit , and the manual doesn't tell me what it's v
/archives//html/Amps/2003-09/msg00174.html (6,831 bytes)

184. Re: [Amps] Socket source? (score: 1)
Author: "carl seyersdahl" <carlseye@tampabay.rr.com>
Date: Sat, 27 Sep 2003 14:33:47 -0400
according to Google, RF Parts has them, for 395 .00 carl / kz5ca -- Original Message -- From: "rlm" <r@somis.org> To: "AMPS" <amps@contesting.com> Sent: Saturday, September 27, 2003 5:38 AM Subject:
/archives//html/Amps/2003-09/msg00193.html (7,098 bytes)

185. [Amps] rf drive (score: 1)
Author: "carl seyersdahl" <carlseye@tampabay.rr.com>
Date: Sat, 4 Oct 2003 08:39:27 -0400
Here's a question I never gave any thought to in the past. does the rf drive required for one amplifier tube double when using two tubes?? carl / kz5ca _______________________________________________
/archives//html/Amps/2003-10/msg00031.html (6,625 bytes)

186. [Amps] bridges (score: 1)
Author: "carl seyersdahl" <carlseye@tampabay.rr.com>
Date: Wed, 8 Oct 2003 19:35:00 -0400
FWIF: I'm still looking for the manual & info on the BECO model 303A impedance bridge!!!!! any info will be greatly appreciated !!!!!!! thanks to all.!!!!!! carl / kz5ca _____________________________
/archives//html/Amps/2003-10/msg00068.html (6,638 bytes)

187. Re: [Amps] Driving Z of 572-b's (score: 1)
Author: "carl seyersdahl" <carlseye@tampabay.rr.com>
Date: Sat, 11 Oct 2003 11:18:25 -0400
According to my books the driving impedance of the 572B is 215 ohms, so two of them would be about 107 ohms. that's as close as one can get I guess. carl / kz5ca -- Original Message -- From: <wb8jkr@
/archives//html/Amps/2003-10/msg00084.html (8,070 bytes)

188. [Amps] amp (score: 1)
Author: "carl seyersdahl" <carlseye@tampabay.rr.com>
Date: Sat, 25 Oct 2003 14:28:17 -0400
Can anyone tell me anything about a 2 mtr. amp, RF concepts model 317-B ?? I need at least the schematic for it. Thanks to all !!!!! carl / kz5ca _______________________________________________ Amps
/archives//html/Amps/2003-10/msg00237.html (6,561 bytes)

189. [Amps] pi-net programs (score: 1)
Author: "carl seyersdahl" <carlseye@tampabay.rr.com>
Date: Fri, 31 Oct 2003 20:18:59 -0500
I have been using the "Elmer wingfield " pi-net program in an attempt to find some answers to some problems. I have compared the results of that program and the info in the '97 arrl handbook and they
/archives//html/Amps/2003-11/msg00000.html (6,719 bytes)

190. Re: [Amps] Manual for YAESU FL- 2 0 0 0 ? (score: 1)
Author: "carl seyersdahl" <carlseye@tampabay.rr.com>
Date: Tue, 4 Nov 2003 06:47:28 -0500
Peter: I can't help you with the manual , but check the hi voltage on the amp. If it's about 2400 vdc, then it had to use 572B's because the 811A's were only good for about 1600 vdc. Just abit of inf
/archives//html/Amps/2003-11/msg00035.html (8,878 bytes)

191. Re: [Amps] Re: SB200 Grid Current... (score: 1)
Author: "carl seyersdahl" <carlseye@tampabay.rr.com>
Date: Wed, 26 Nov 2003 19:16:43 -0500
Roy, and the group: It's entirely possible the tubes are at fault because they may be shorted only when the filament is hot (energized) the only way to know is with known good tubes.!!Also, you bette
/archives//html/Amps/2003-11/msg00374.html (10,076 bytes)

192. Re: [Amps] Life on the Screen? (score: 1)
Author: "carl seyersdahl" <carlseye@tampabay.rr.com>
Date: Sat, 29 Nov 2003 10:16:31 -0500
Marv: I'm not current on these things, but if you could find a schematic for the old military T-195 , it used a very effective phase discriminator setup for automatic tuning of the final .!! the tube
/archives//html/Amps/2003-11/msg00392.html (9,462 bytes)

193. [Amps] chokes (score: 1)
Author: "carl seyersdahl" <carlseye@tampabay.rr.com>
Date: Fri, 5 Dec 2003 07:18:53 -0500
This is just a comment on separate plate chokes. My diagram for the Collins 30L1 shows only two chokes for four tubes.!! two tubes for one choke. Does that amp have any problems in that respect.?? Ju
/archives//html/Amps/2003-12/msg00059.html (6,762 bytes)

194. Re: [Amps] 3-500Z plate durability (score: 1)
Author: "carl seyersdahl" <carlseye@tampabay.rr.com>
Date: Tue, 9 Dec 2003 18:23:33 -0500
I don't know about the 3-500 , but I think it depends on the tube type.!! When I was in signal school, (many years ago, 1948) we were taught how to tune and load a hi-power amp using the color of the
/archives//html/Amps/2003-12/msg00150.html (9,657 bytes)

195. Re: [Amps] A Crying Shame (score: 1)
Author: "carl seyersdahl" <carlseye@tampabay.rr.com>
Date: Thu, 29 Jan 2004 17:54:35 -0500
This is just a thought, but I'm still wondering about it.!!! I have shipped several amps, etc, by usps, ups, fedex, etc and have had mixed results.!! First of all , I have noticed that IF, you put an
/archives//html/Amps/2004-01/msg00349.html (10,971 bytes)

196. Re: [Amps] SB-200 80 Meter Dilemma Update (score: 1)
Author: "carl seyersdahl" <carlseye@tampabay.rr.com>
Date: Thu, 4 Mar 2004 18:36:08 -0500
When it comes to the SB200, or for that matter any other amp, 80 mtrs seems to be a difficult band to get a decent input swr. What is your input swr , more or less exactly, on 80.??? I have had many
/archives//html/Amps/2004-03/msg00049.html (9,682 bytes)

197. Re: [Amps] SB-200 80 Meter Dilemma Update (score: 1)
Author: "carl seyersdahl" <carlseye@tampabay.rr.com>
Date: Thu, 4 Mar 2004 18:43:39 -0500
What do you mean by "load and tune caps, 100 and 500 pf caps?? the tune cap is about 250 pfs, and the load cap is a dual or triple cap of about 1000 pf or so max. something doesn't look right there.!
/archives//html/Amps/2004-03/msg00050.html (9,328 bytes)

198. Re: [Amps] AMERITRON AL811 GRID METER MOT SHOWING READING (score: 1)
Author: "carl seyersdahl" <carlseye@tampabay.rr.com>
Date: Tue, 30 Mar 2004 06:58:58 -0500
The first thing to look at will be the "meter" switch.!! I've seen several cases where the switch gets a film on it due to the very small current and voltage it switches. I cured that by disconnectin
/archives//html/Amps/2004-03/msg00350.html (8,370 bytes)

199. [Amps] SB200, ETC (score: 1)
Author: "carl seyersdahl" <carlseye@tampabay.rr.com>
Date: Wed, 14 Apr 2004 18:27:04 -0400
This is just a thought at the moment, but I've been wondering about the repair/ modernization of the heathkit amps, primarily the SB200 to start, and whether there might be sufficient interest in the
/archives//html/Amps/2004-04/msg00094.html (6,774 bytes)

200. [Amps] wire gauge (score: 1)
Author: "carl seyersdahl" <carlseye@tampabay.rr.com>
Date: Sun, 18 Apr 2004 08:36:11 -0400
Does anyone know the proper wire gauge to use to rewind the plate choke in the SB200??? I have one than looks like it's burned and I think it wise to rewind it, which is not a big problem to do. Than
/archives//html/Amps/2004-04/msg00113.html (6,258 bytes)

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