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References: [ +from:w7ry@centurytel.net: 284 ]

Total 284 documents matching your query.

181. Re: [Amps] Need small chain and sprockets for tuner project (score: 1)
Author: Jim W7RY <w7ry@centurytel.net>
Date: Fri, 31 Jan 2014 16:37:41 -0800
That is a REALLY old catalog. At least the presidents letter is. It mentions 9/11/2001 as being last year! Unfortunately, they are some different company now. 73 Jim W7RY http://www.smallparts2.com/p
/archives//html/Amps/2014-01/msg00353.html (10,630 bytes)

182. Re: [Amps] Update on AL-1200 T/R Problem (score: 1)
Author: Jim W7RY <w7ry@centurytel.net>
Date: Thu, 06 Feb 2014 21:50:42 -0800
Convert it to QSK with a vacuum relay and a reed relay for the input. Pictures of my stuff here: http://s900.photobucket.com/user/w7ry/library/Ameritron%20AL-82%20QSK%20Modifications?sort=3&page=1 73
/archives//html/Amps/2014-02/msg00051.html (9,057 bytes)

183. [Amps] Solid State Relays Again (score: 1)
Author: Jim W7RY <w7ry@centurytel.net>
Date: Sun, 09 Feb 2014 19:13:56 -0800
I just had a solid state relay in my 8877 power supply short during the RTTY contest this weekend. I use 2 relays, one to short out the step start resistor, and the other one for the other leg of the
/archives//html/Amps/2014-02/msg00065.html (7,358 bytes)

184. Re: [Amps] Solid state relays..again (score: 1)
Author: Jim W7RY <w7ry@centurytel.net>
Date: Thu, 13 Feb 2014 07:08:40 -0800
That's why I put step start in my large Astron power supplies. No more thump. No more blown up power switches. 73 Jim W7RY Of course, in equipment controlled by a simple mechanical power switch, it's
/archives//html/Amps/2014-02/msg00104.html (16,399 bytes)

185. [Amps] A Professionally Built Amplifier Claim (score: 1)
Author: Jim W7RY <w7ry@centurytel.net>
Date: Sun, 16 Feb 2014 06:37:04 -0800
http://www.ebay.com/itm/3cx3000a7-eimac-linear-amp-/271399287361?pt=US_Ham_Radio_Amplifiers&hash=item3f30a87a41 For your reading and visual enjoyment. 73 Jim W7RY ____________________________________
/archives//html/Amps/2014-02/msg00144.html (6,519 bytes)

186. [Amps] Shipping SB200 with Tube Installed (score: 1)
Author: Jim W7RY <w7ry@centurytel.net>
Date: Sat, 22 Feb 2014 08:22:38 -0800
Do you think it's wise to ship a SB200 with the tubes installed? It will be packed in a heavy duty computer box with high density foam for packing. Thanks 73 Jim W7RY ________________________________
/archives//html/Amps/2014-02/msg00213.html (7,241 bytes)

187. [Amps] 3-500 Tester Parts (score: 1)
Author: Jim W7RY <w7ry@centurytel.net>
Date: Sun, 02 Mar 2014 21:12:02 -0800
I've decided to build a 3-500 tube tester and could use the following parts if anyone has some in their junk box: -Chimney -Filament transformer (6 volt transformer would work fine, I'm going to put
/archives//html/Amps/2014-03/msg00012.html (6,598 bytes)

188. [Amps] Harbaugh SB-220 Cap Bank Diodes (score: 1)
Author: "Jim W7RY" <w7ry@centurytel.net>
Date: Fri, 14 Mar 2014 20:36:20 -0700
I just had a catastrophic failure on a SB-220. (There was no glitch resistor installed YET). I had a rubber foot from the amp wedged between the interlock spring and the choke standoff. The foot appa
/archives//html/Amps/2014-03/msg00078.html (7,110 bytes)

189. [Amps] Commander 2500 Pi Coil Toroid (score: 1)
Author: "Jim W7RY" <w7ry@centurytel.net>
Date: Sun, 16 Mar 2014 19:50:46 -0700
Im need to repair a melted toroidal inductor in a Commander 2500. (See K1TTT station maintenance for pictures). The coil I have has the same melted mounting and burned up cores. It looks like the cor
/archives//html/Amps/2014-03/msg00082.html (6,975 bytes)

190. [Amps] 5V 15A Wanted (score: 1)
Author: "Jim W7RY" <w7ry@centurytel.net>
Date: Wed, 19 Mar 2014 18:58:15 -0700
Still looking for a 5VCT 15A filament transformer for my 3-500z tube tester. Thanks 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.cont
/archives//html/Amps/2014-03/msg00116.html (6,411 bytes)

191. [Amps] More on Toroidal Tank Circuit Issues (score: 1)
Author: "Jim W7RY" <w7ry@centurytel.net>
Date: Fri, 21 Mar 2014 13:08:35 -0700
I may have to eat some crow here about using dedicated toroids on 160 and 80 meters... I built an 8877 amplifier based on the K8RA (SK) 3CX1500D7 amplifier. http://www.k8ra.com/index_049.htm Mine is
/archives//html/Amps/2014-03/msg00124.html (8,400 bytes)

192. Re: [Amps] More on Toroidal Tank Circuit Issues (score: 1)
Author: "Jim W7RY" <w7ry@centurytel.net>
Date: Fri, 21 Mar 2014 16:46:12 -0700
Both leads are shored by the band switch when on 10 meters guys. Interesting that 3 of you came up with the same possibility... Not sure where to put the capacitor if both leads are shorted together.
/archives//html/Amps/2014-03/msg00128.html (11,704 bytes)

193. Re: [Amps] More on Toroidal Tank Circuit Issues (score: 1)
Author: "Jim W7RY" <w7ry@centurytel.net>
Date: Fri, 21 Mar 2014 21:08:44 -0700
Thanks for the idea Dan... I moved the toroid away from the loading cap. Made a huge difference. Its now hooked to the back of the loading cap and the bandswitch. Now it runs pretty cool. No more smo
/archives//html/Amps/2014-03/msg00129.html (13,197 bytes)

194. Re: [Amps] More on Toroidal Tank Circuit Issues (score: 1)
Author: "Jim W7RY" <w7ry@centurytel.net>
Date: Sat, 22 Mar 2014 13:25:21 -0700
So I used the measurement technique from Tom W8JI that he has on his site and found that the 160 meter toroid was certainly resonate on 10 meters! No matter what I did. Sure, I could move my hand aro
/archives//html/Amps/2014-03/msg00131.html (14,301 bytes)

195. Re: [Amps] measuring cap value (score: 1)
Author: "Jim W7RY" <w7ry@centurytel.net>
Date: Sun, 23 Mar 2014 22:30:16 -0700
Just an old 2K or is there a suffix? The 2K, which I have on here, has no fixed caps in it except for the plate blocking caps. Does it do it on all bands? Was this amplifier working? Are the settings
/archives//html/Amps/2014-03/msg00136.html (10,110 bytes)

196. Re: [Amps] More on Toroidal Tank Circuit Issues (score: 1)
Author: "Jim W7RY" <w7ry@centurytel.net>
Date: Tue, 25 Mar 2014 21:36:08 -0700
So here is the real fix! I removed the 80 and 160 meter toroids all together. Installed a 2" dia X 3.5" long ceramic coil with 42 turns of #14 wire and hooked it to the end of the 40 meter coil. The
/archives//html/Amps/2014-03/msg00150.html (17,583 bytes)

197. Re: [Amps] More on Toroidal Tank Circuit Issues (score: 1)
Author: "Jim W7RY" <w7ry@centurytel.net>
Date: Fri, 28 Mar 2014 16:47:07 -0700
Do you think that #12 enameled close wound would withstand the voltage turn to turn? The coil I have is #14 on a ceramic core. The wire is spaced about the same size as the #14. So there is space for
/archives//html/Amps/2014-03/msg00183.html (19,797 bytes)

198. Re: [Amps] B&W PT-2500A on 10m? (score: 1)
Author: "Jim W7RY" <w7ry@centurytel.net>
Date: Thu, 3 Apr 2014 21:14:49 -0700
I can send you a picture of my B&W PT2500 that has 10 meters in it. There is a small air core coil and a couple of caps on my 10 meter input. Let me know 73 Jim W7RY I think we got off the rail a bit
/archives//html/Amps/2014-04/msg00048.html (10,488 bytes)

199. [Amps] HF2500 Power Supply Caps (score: 1)
Author: "Jim W7RY" <w7ry@centurytel.net>
Date: Fri, 4 Apr 2014 21:14:07 -0700
So Carl... What caps are you installing into the Commander HF2500 amps? The originals are 270 mF @450 volts. Thanks 73 Jim W7RY _______________________________________________ Amps mailing list Amps@
/archives//html/Amps/2014-04/msg00053.html (6,501 bytes)

200. [Amps] Front Panel Express Help (score: 1)
Author: "Jim W7RY" <w7ry@centurytel.net>
Date: Tue, 8 Apr 2014 22:13:35 -0700
Can anyone give me some pointers on creating a 150 degree arc label for a band switch for Front Panel Express? I have a radio switch 86 switch with 30 degree detents. 6 positions, 160-10 meters. Than
/archives//html/Amps/2014-04/msg00105.html (6,595 bytes)

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