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181. [AMPS] Vacuum Relays for Sale...anyone want 'em? (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Tue, 28 Apr 98 22:51:26 -0500
Howdy all, I have 2 Eimac VS-5 vacuum relays that I would be willing to sell to whoever wants them. These are really old I believe and look like they can handle a LOT of power. They operate on +12 V
/archives//html/Amps/1998-04/msg00324.html (7,711 bytes)

182. [AMPS] Parasitics, AL-1500 (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Wed, 29 Apr 98 09:20:28 -0500
Ouch! That would worry me! Not surprising. The parasitic inductances and capacitances inside the tube and in the rest of your circuit will cause this to happen. As Rich says, you can't eliminate it
/archives//html/Amps/1998-04/msg00329.html (9,787 bytes)

183. [AMPS] Re: (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Wed, 29 Apr 98 18:45:27 -0500
And they are good points indeed! Yes, yes, yes...Absolutely! Back in my days of designing 16 tone linear amps, guys would make that mistake all the time (including me). It's amazing what adding some
/archives//html/Amps/1998-04/msg00334.html (8,953 bytes)

184. [AMPS] Re: (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Wed, 29 Apr 98 19:22:49 -0500
That seems about correct although...It's gotta be pretty low. 73, Jon KE9NA -- Jon Ogden KE9NA http://www.qsl.net/ke9na "A life lived in fear is a life half lived." -- FAQ on WWW: http://www.contest
/archives//html/Amps/1998-04/msg00337.html (7,221 bytes)

185. [AMPS] 4-1000A Input Impedance (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Sun, 1 Mar 98 19:52:07 -0600
Howdy all. Got a question on my 4-1000A. What should the input impedance of this tube be? I have heard that it is approximately 110 Ohms in parallel with 27.2 pf. My problem is that I had build an in
/archives//html/Amps/1998-03/msg00007.html (8,318 bytes)

186. [AMPS] 4-1000A Clarification (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Sun, 1 Mar 98 20:41:02 -0600
Hi, I wrote the note asking the input impedance of a 4-1000A. I forgot to mention that I am running class B grounded grid. 73 es tnx, Jon KE9NA -- Jon Ogden KE9NA http://www.qsl.net/ke9na "A life liv
/archives//html/Amps/1998-03/msg00009.html (6,797 bytes)

187. [AMPS] Is this SIG used by anyone or just me? (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Mon, 2 Mar 98 21:48:25 -0600
Hi. I don't mean to be a jerk or anything, but does anybody out there actually read and respond to the messages posted in the SIG? I have posted a message about some difficulty I am having with a 4-1
/archives//html/Amps/1998-03/msg00016.html (7,840 bytes)

188. [AMPS] Thanks! (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Tue, 3 Mar 98 08:57:27 -0600
Hi all. I just want to thank everyone for their replies to my last post. Sadly, I wasn't able to get any ideas from anyone, but such is life. I appreciate the kind responses a lot of you gave telling
/archives//html/Amps/1998-03/msg00022.html (7,032 bytes)

189. [AMPS] What Amp to buy (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Wed, 4 Mar 98 13:56:00 -0600
Go with the Alpha, IMHO. If I could afford one, I'd buy one. 73, Jon KE9NA -- Jon Ogden jono@webspun.com www.qsl.net/ke9na "A life lived in fear is a life half lived." -- FAQ on WWW: http://www.cont
/archives//html/Amps/1998-03/msg00048.html (7,257 bytes)

190. [AMPS] Key down time (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Mon, 9 Mar 98 13:46:32 -0600
In regards to key down time on amplifiers: I believe any amplifier can run keyed down indefinitely given: 1.) Proper cooling of the tube to keep it within temp limits 2.) Heavy duty enough power supp
/archives//html/Amps/1998-03/msg00087.html (7,659 bytes)

191. [AMPS] Thanks Carl (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Mon, 9 Mar 98 16:21:46 -0600
People like YOU are why we keep losing band space (and BTW, last time I checked, none of the HF bands are in danger of being lost so don't give me that argument anyhow.). It's the damn CBers who are
/archives//html/Amps/1998-03/msg00101.html (9,084 bytes)

192. [AMPS] Hi Down Under!! (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Mon, 9 Mar 98 16:29:42 -0600
It's not that your kind aren't welcome. You sure have a way of distorting things. What is NOT welcome is breaking the rules. Ham Radio exists as it is and has the freedom from government interferenc
/archives//html/Amps/1998-03/msg00104.html (8,535 bytes)

193. [AMPS] AWSOME AMP>>> (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Mon, 9 Mar 98 17:08:56 -0600
I think he is. In a previous post he mentioned CBers with 50 KW stations. Uh, I don't know about you, but that is one hell of a lot of power. The tubes alone to run that much power cost 30K to 40K e
/archives//html/Amps/1998-03/msg00108.html (8,191 bytes)

194. [AMPS] Re: Tube chimneys (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Mon, 9 Mar 98 18:26:51 -0600
I am not sure how big the 4CX800 is, but I do know of people who have used the glass shroud from a Coleman camping lantern as Chimneys for some of the bigger tubes. That could work quite well and yo
/archives//html/Amps/1998-03/msg00116.html (7,837 bytes)

195. [AMPS] AWSOME AMP>>> (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Mon, 9 Mar 98 18:32:22 -0600
Oh sure, there are tubes that will do it, but try to buy one! How much does it cost? I used to call on Harris Broadcast in Quincy, Illinois. They make 50 KW transmitters there. One day, one of the e
/archives//html/Amps/1998-03/msg00118.html (8,384 bytes)

196. [AMPS] Big Amp's (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Mon, 9 Mar 98 18:34:56 -0600
How about it! Thank you. I'd forgotten that in all the hubbub! :-) Lest we all forget, the rules DO say to run with the MINIMUM power needed to carry on a conversation............. 73, Jon KE9NA --
/archives//html/Amps/1998-03/msg00119.html (6,931 bytes)

197. [AMPS] Key down time (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Mon, 9 Mar 98 18:40:10 -0600
Ahh, good point! I forgot about that. Yes, those get rather warm too. As far as I am concerned, you can't have too much cooling on an amp! 73, Jon KE9NA -- Jon Ogden KE9NA http://www.qsl.net/ke9na "
/archives//html/Amps/1998-03/msg00121.html (7,405 bytes)

198. [AMPS] Our Friend Stan and Amps.... (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Mon, 9 Mar 98 19:36:14 -0600
I wonder if our friend, Stan, is still subscribed. Because I have a question for him: Given all this and all his other "friends" he talked about in his note to me, why the heck did he BUY an amplifie
/archives//html/Amps/1998-03/msg00126.html (7,447 bytes)

199. [AMPS] 50K on CB (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Mon, 9 Mar 98 23:19:15 -0600
YIKES!!! I wouldn't want to be in the proximity of the near field of that magnitude of signal! Far field radiation is pretty harmless. Near field...well, that's a different story. Maybe that's why C
/archives//html/Amps/1998-03/msg00134.html (7,860 bytes)

200. [AMPS] 50K on CB (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Tue, 10 Mar 98 08:53:55 -0600
Hence the reason WE get blamed for the problem and lumped in with them............. 73, Jon KE9NA -- Jon Ogden jono@webspun.com www.qsl.net/ke9na "A life lived in fear is a life half lived." -- FAQ
/archives//html/Amps/1998-03/msg00148.html (7,353 bytes)

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