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Total 238 documents matching your query.

201. Re: [Amps] Solid state amplifiers - big ones (score: 1)
Author: "Jeff Blaine" <keepwalking188@yahoo.com>
Date: Tue, 8 May 2012 12:02:11 -0500
Come on Joe, for a petty cash $550K, what can you expect? 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie With compression greater than 3 dB for full power output it's certainly an IMD generator
/archives//html/Amps/2012-05/msg00241.html (8,866 bytes)

202. Re: [Amps] vl2000 (score: 1)
Author: "Jeff Blaine" <keepwalking188@yahoo.com>
Date: Tue, 22 May 2012 23:02:09 -0500
Too bad Joe. But I sure would like to have a pair of those DISH units on my bench here. Every time I see those bad boys at dayton my mouth goes a "waddiinnnn....." 73/jeff/ac0c www.ac0c.com alpha-cha
/archives//html/Amps/2012-05/msg00318.html (8,057 bytes)

203. Re: [Amps] Antennae (?) (score: 1)
Author: "Jeff Blaine" <keepwalking188@yahoo.com>
Date: Wed, 11 Jul 2012 21:39:21 -0500
I thought the purpose of the ball was to eat the SWRs. That way your rig does not have to swallow the SWRs... 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie The most effective ball on the top o
/archives//html/Amps/2012-07/msg00168.html (7,827 bytes)

204. Re: [Amps] 3CX1500A7/8877 (score: 1)
Author: "Jeff Blaine" <keepwalking188@yahoo.com>
Date: Mon, 30 Jul 2012 14:41:51 +0800
Bill, Curious: Was that a tuned input or a swamped resistive type? 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie REPLY: GS35b's work but they are relatively inefficient, IMO. I built an amp an
/archives//html/Amps/2012-07/msg00397.html (8,322 bytes)

205. Re: [Amps] 3CX1500A vs el cheapo GS-35B (score: 1)
Author: "Jeff Blaine" <keepwalking188@yahoo.com>
Date: Thu, 2 Aug 2012 19:59:40 +0800
Can someone post a link or two to the fabled work of Bob? I would like to take a look. Lot of examples of marginal to poor work on the web. The great stuff is harder to find. Thanks! 73/jeff/ac0c www
/archives//html/Amps/2012-08/msg00041.html (9,874 bytes)

206. Re: [Amps] non traditional linear (score: 1)
Author: "Jeff Blaine" <keepwalking188@yahoo.com>
Date: Mon, 13 Aug 2012 00:17:29 -0500
A buddy of mine was going to put a pair of Gi7B into a computer case. Power supply below and pressurizing that compartment with air venting up through the tube sockets. Don't think he did it - but it
/archives//html/Amps/2012-08/msg00184.html (10,440 bytes)

207. Re: [Amps] NEW Tail Twister Rotator (score: 1)
Author: "Jeff Blaine" <keepwalking188@yahoo.com>
Date: Fri, 2 Nov 2012 17:36:52 -0500
Wow, a new AMP named Tail Twister. Very cool name for an AMP. I have heard of a ROTOR (not an amp) with the same name. But I would guess a guy with a ROTOR for sale would post that for-sale item on a
/archives//html/Amps/2012-11/msg00009.html (11,135 bytes)

208. Re: [Amps] hf-2500 (score: 1)
Author: "Jeff Blaine" <keepwalking188@yahoo.com>
Date: Sat, 22 Dec 2012 09:45:08 -0600
They don't work very well in that implementation (the hf-2500). A guy across town had the exact same failure scenario as David did. Not quite a "china syndrome" but a melt-down none the less. I think
/archives//html/Amps/2012-12/msg00133.html (10,418 bytes)

209. Re: [Amps] Ameritron AL-1500 inquiry (score: 1)
Author: "Jeff Blaine" <keepwalking188@yahoo.com>
Date: Fri, 25 Jan 2013 10:20:46 -0600
Larry, Who's selling those? I checked Arrow, Jameco, Digikey and Mouser. No joy. 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie Jim, Look at TE Connectivity (Schrack) RT31C0xx which has the sam
/archives//html/Amps/2013-01/msg00153.html (9,673 bytes)

210. Re: [Amps] Peter Dahl transformers (score: 1)
Author: "Jeff Blaine" <keepwalking188@yahoo.com>
Date: Wed, 13 Feb 2013 13:42:37 -0600
I had a custom done by EPD. He will build exactly what you want. You can have complete control over the compromises and material set, if you know what you want specifically. He told me once that most
/archives//html/Amps/2013-02/msg00106.html (11,570 bytes)

211. Re: [Amps] Peter Dahl transformers (score: 1)
Author: "Jeff Blaine" <keepwalking188@yahoo.com>
Date: Thu, 14 Feb 2013 12:50:50 -0600
He eventually called the one I bought 1.4 KVA CCS. I draw about 1800 KVA from it in RTTY contest duty and the surface temp of the core never gets over about 45c. In fact, I was worried about the trad
/archives//html/Amps/2013-02/msg00114.html (14,459 bytes)

212. Re: [Amps] Peter Dahl transformers (score: 1)
Author: "Jeff Blaine" <keepwalking188@yahoo.com>
Date: Fri, 15 Feb 2013 19:15:15 -0600
I am sure that most of the RTTY contest community is happy that this mode has not grabbed your fancy. But if you ever do decide to RTTY contest, Carl, that LK800 is a real sweet amp. Even if Jim woul
/archives//html/Amps/2013-02/msg00127.html (17,284 bytes)

213. Re: [Amps] FW: Power factor correction on tube amps (score: 1)
Author: "Jeff Blaine" <keepwalking188@yahoo.com>
Date: Sun, 10 Mar 2013 13:42:25 +0800
While good in intention, the practical value of ISO and QS stuff is to provide the equivalent of an ongoing annuity to companies that perform the conformance audits. So it should be no surprise that
/archives//html/Amps/2013-03/msg00131.html (14,132 bytes)

214. Re: [Amps] Look at this Custom 10kW Amp (score: 1)
Author: "Jeff Blaine" <keepwalking188@yahoo.com>
Date: Thu, 11 Apr 2013 15:09:11 -0500
For contesting or dx chasing, I think I would rather be parked next to a guy with this amp running it's clean limits than the all-too-common SB220 owner who has all the dials set to 11 in the thought
/archives//html/Amps/2013-04/msg00076.html (14,316 bytes)

215. Re: [Amps] HV resistor source (score: 1)
Author: "Jeff Blaine" <keepwalking188@yahoo.com>
Date: Tue, 16 Apr 2013 23:37:24 -0500
That is for a glitch - the resistor limits the current in the even the tube (or whatever) arcs and dumps the B+ to ground. The caps will discharge through that resistor. I went through that sourcing
/archives//html/Amps/2013-04/msg00147.html (9,050 bytes)

216. Re: [Amps] Solid state amp comparisons (score: 1)
Author: "Jeff Blaine" <keepwalking188@yahoo.com>
Date: Wed, 24 Apr 2013 23:26:48 -0500
Greg, You left off the big dog. http://www.dishtronix.com/prometheus.html 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie I will shortly be in the market for a >= 1kW output solid state amp. Can
/archives//html/Amps/2013-04/msg00207.html (8,028 bytes)

217. [Amps] WTB: GM3SEK triode and tetrode control board kits (score: 1)
Author: "Jeff Blaine" <keepwalking188@yahoo.com>
Date: Sun, 28 Apr 2013 22:53:18 -0500
Have a complete GM3SEK kit or spare completed and functional board? Im looking for both the triode and tetrode boards. Please contact me directly with details. Email to: jeff @ ac0c.com Thanks! 73/je
/archives//html/Amps/2013-04/msg00242.html (7,080 bytes)

218. Re: [Amps] 572b (score: 1)
Author: "Jeff Blaine" <keepwalking188@yahoo.com>
Date: Thu, 2 May 2013 17:22:34 -0500
I have used about 8 of the Chinese 572 specifically for torture testing in RTTY service and I can say without qualification that the plate dissipation limit (IIRC 160w) is not something which will ke
/archives//html/Amps/2013-05/msg00021.html (10,262 bytes)

219. Re: [Amps] 572b (score: 1)
Author: "Jeff Blaine" <keepwalking188@yahoo.com>
Date: Thu, 2 May 2013 17:39:15 -0500
Jim, I don't know why either. Maybe I don't understand the spec or the application or some other error. Or it could be a faster roll off in emission at higher sustained currents. No idea. I gave up o
/archives//html/Amps/2013-05/msg00023.html (11,980 bytes)

220. Re: [Amps] What is the going rate for YC156s / what have people paidfor them? (score: 1)
Author: "Jeff Blaine" <keepwalking188@yahoo.com>
Date: Thu, 1 Aug 2013 14:53:58 -0500
I bought a few under these conditions a while back at $200 ea. 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie --Original Message-- From: David Kirkby Sent: Thursday, August 01, 2013 10:27 AM To
/archives//html/Amps/2013-08/msg00002.html (7,970 bytes)

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