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Total 89 documents matching your query.

1. [AMPS] 1500pf variable with .03 spacing needed (score: 1)
Author: (Partain, Chuck)
Date: Fri, 16 Nov 2001 12:00:32 -0800
Anyone have a cap available for sale for my forever long amp project?? 1500pf .03 spacing. a jackson 4595/3/380 would be puuurrrfect. de ka1mwp -- FAQ on WWW: Submi
/archives//html/Amps/2001-11/msg00289.html (6,898 bytes)

2. [AMPS] parts needed for 4cx-250 amp I am building (score: 1)
Author: (Partain, Chuck)
Date: Fri, 12 Oct 2001 06:38:19 -0700
OK, I am still on the trail for parts for my HF 4cx-250 amp. I thought I had a plate transformer but that fell thru. Looking for these items now, maybe someone can help. plate transformer ~1500v .5a
/archives//html/Amps/2001-10/msg00295.html (7,686 bytes)

3. [AMPS] need a chimmeny for a eimac 4cx250 socket (score: 1)
Author: (Partain, Chuck)
Date: Fri, 17 Aug 2001 07:12:21 -0700
ok, been on Ebay and keep getting outbid to the tune of like 20$ for a socket and chimmeny for a 4cx250. anybody have one they want to part with for a REASONABLE fee? shipping to Maynard mass... i th
/archives//html/Amps/2001-08/msg00191.html (6,926 bytes)

4. [AMPS] buying from folks in canada (score: 1)
Author: (Partain, Chuck)
Date: Tue, 31 Jul 2001 05:58:45 -0700
Here in the states, just how long does it take for a money order to get to someone and how long should it take to recieve "goods" bought from someone...say in..prince george BC??? just curious...than
/archives//html/Amps/2001-07/msg00375.html (6,506 bytes)

5. [AMPS] 4cx250* amp building plans (score: 1)
Author: (Partain, Chuck)
Date: Tue, 5 Jun 2001 05:22:16 -0700
Looked thru a LOT Of the archives and did not see, any references to plans for building a HF (not VHF) amp using a couple of 4cx250b's. I have one old ARRL circa 1975 set I am going off of now, did a
/archives//html/Amps/2001-06/msg00039.html (8,203 bytes)

6. FW: [Amps] SB-220 Filament Transformer ME TOO (score: 1)
Author: "Partain, Chuck" <>
Date: Wed, 1 Oct 2003 04:15:02 -0700
Try Magcap engineering, they have been doing the Filament transformers Now for a few months and have been getting good reviews, as in they run somewhat Cooler. They can custom one up in a few weeks w
/archives//html/Amps/2003-10/msg00010.html (10,126 bytes)

7. [Amps] transformer secondary winding resistance here we go again (score: 1)
Author: "Partain, Chuck" <>
Date: Thu, 15 Jan 2004 10:08:45 -0700
Maybe I am missing something. If a transformer is able to handle the output current without getting hot or saturating and it meets the size requirement why is the secondary resistance should a concer
/archives//html/Amps/2004-01/msg00151.html (7,100 bytes)

8. RE: [Amps] MagCap Engineering ? (score: 1)
Author: "Partain, Chuck" <>
Date: Mon, 9 Feb 2004 06:16:26 -0700
I got the MagCap transformer last week. 2800v 1.5a ccs weight about 48# and secondary winding resistance 24 ohm this is an "equivalent" of the arrl-002 from pw dahl chuck The next question I would as
/archives//html/Amps/2004-02/msg00052.html (8,114 bytes)

9. RE: [Amps] MagCap Engineering ? (score: 1)
Author: "Partain, Chuck" <>
Date: Mon, 9 Feb 2004 10:34:52 -0700
I mistated mine, its equiv of the arrl-001 on the pwd site, which is 2650 VAC @ 1.5A ICAS $350.00 Plus S&H FOB El Paso and is 46 LBS MY magcap is 2800v 1.5 icas, 280$ plus s&h FOB Canton, ma its abou
/archives//html/Amps/2004-02/msg00055.html (10,806 bytes)

10. [Amps] gu-84b amp schematic (score: 1)
Author: "Partain, Chuck" <>
Date: Wed, 18 Feb 2004 11:04:13 -0800
I asked this I am going thru building this amp from scratch, I Was wondering what the chances are...of getting a schematic of the emtron amp that uses the gu84b.. it looks REAL compact and
/archives//html/Amps/2004-02/msg00168.html (7,051 bytes)

11. [Amps] muffin fans (score: 1)
Author: "Partain, Chuck" <>
Date: Tue, 24 Feb 2004 04:28:28 -0800
anyone ever do any studies about muffin fans for cooling BIG tubes? I have a decent size blower I'm going to use on my amp (gu-84b) and wondered if there was a smaller fan (I'm into the size reductio
/archives//html/Amps/2004-02/msg00221.html (7,018 bytes)

12. [Amps] plate supply ratings and thoughts (score: 1)
Author: "Partain, Chuck" <>
Date: Thu, 26 Feb 2004 08:05:27 -0800
Looking over ALL my info I have here I'm beginning to rethink my stradegy. Its never too late until I start buying LOTS of parts (but I still can always resell them). The transformer I picked 2800v @
/archives//html/Amps/2004-02/msg00258.html (7,178 bytes)

13. [Amps] winding plate inductors (score: 1)
Author: "Partain, Chuck" <>
Date: Wed, 10 Mar 2004 05:08:49 -0800
quick question, where can I find info about the actual winding of a plate inductor. I know copper, silver plated, all that good stuff to use but I haven't run across (other than winding and measuring
/archives//html/Amps/2004-03/msg00094.html (7,129 bytes)

14. [Amps] Winding inductors (score: 1)
Author: "Partain, Chuck" <>
Date: Fri, 12 Mar 2004 05:53:58 -0800
Thanks to all who answered my question!!, I did look around and found some info after but your formulae and suggestions are much more help! and some coil winding techniques were very informational! ~
/archives//html/Amps/2004-03/msg00128.html (6,773 bytes)

15. [Amps] turns counter needed (score: 1)
Author: "Partain, Chuck" <>
Date: Thu, 22 Apr 2004 06:56:29 -0600
I bought a jennings 500pf vacuum cap and need a 20 turns counter for it. anyone have something laying around? I'm off to the hopkington flea next week, and hope to find somethign there also. Chuck Pa
/archives//html/Amps/2004-04/msg00148.html (6,755 bytes)

16. [Amps] drake l4 PS questions (score: 1)
Author: "Partain, Chuck" <>
Date: Mon, 3 May 2004 06:46:16 -0600
A friend of mine asked me to look at his Drake L4 power supply. I see a resistor, 5k 10w burned and a few wires scorched. Reading and looking at the schematic this is supposed to go if any of the dio
/archives//html/Amps/2004-05/msg00028.html (6,582 bytes)

17. RE: - RE: [Amps] Heyboer Transformers (score: 1)
Author: "Partain, Chuck" <>
Date: Mon, 10 May 2004 11:43:37 -0600
Try Chris Lagadinos at MagCap engineering for a quote, they did me a custom transformer and they are going to Dayton also. Highly recomended by me and check out thier other customer base on thier web
/archives//html/Amps/2004-05/msg00112.html (8,777 bytes)

18. [Amps] Drake L4-B Power supply caps (score: 1)
Author: "Partain, Chuck" <>
Date: Tue, 25 May 2004 10:11:52 -0400
retrofitting an Drake L4-B and found the PS caps are popped. THey are 200ufd, 400v electrolytic. Looking to see if anyone has EIGHT available. 220 @450 allover the web for 5$ but not sure of quality?
/archives//html/Amps/2004-05/msg00222.html (7,203 bytes)

19. [Amps] drake l-4b from 4-400 to 3-500 (score: 1)
Author: "Partain, Chuck" <>
Date: Tue, 24 Aug 2004 08:49:50 -0400
whats the scoop with converting the bottles in a drake l-4b from 4-400 to 3-500??? _______________________________________________ Amps mailing list
/archives//html/Amps/2004-08/msg00276.html (6,330 bytes)

20. RE: [Amps] drake l-4b from 4-400 to 3-500 (score: 1)
Author: "Partain, Chuck" <>
Date: Tue, 24 Aug 2004 10:12:12 -0400
i'm thinking now, it maybe a L4 not the B model.. maybe i just didn't pay attention...I've been busy with too many projects. this was given to me to look at for a repair (yes a friend ham) and was ju
/archives//html/Amps/2004-08/msg00279.html (8,294 bytes)

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