Search String: Display: Description: Sort:

Results:

References: [ +from:donroden@hiwaay.net: 546 ]

Total 546 documents matching your query.

241. Re: [Amps] Schematics  for 4CX250B GG HF amplifie r (score: 1)
Author: donroden@hiwaay.net
Date: Wed, 15 Aug 2012 22:09:46 -0500
The "driver" was a KWM-2A and the amp was in a Bud cabinet that matched the Collins gear. It made more power out than the 30L-1. Don W4DNR _______________________________________________ Amps mailing
/archives//html/Amps/2012-08/msg00238.html (9,888 bytes)

242. Re: [Amps] Schematics  for 4CX250B GG HF amplifier (score: 1)
Author: donroden@hiwaay.net
Date: Sat, 18 Aug 2012 18:05:18 -0500
I built a quad of Grunded Grid 250Bs in the mid-seventies... just to see if it would work, and because I had a free supply of pulls at my disposal. No tuned input and I used a KWM-2A as a driver. It
/archives//html/Amps/2012-08/msg00321.html (10,581 bytes)

243. Re: [Amps] Schematics  for 4CX250B GG HF amplifier (score: 1)
Author: donroden@hiwaay.net
Date: Sat, 18 Aug 2012 19:06:25 -0500
_______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2012-08/msg00323.html (8,049 bytes)

244. Re: [Amps] Schematics  for 4CX250B GG HF amplifier (score: 1)
Author: donroden@hiwaay.net
Date: Sat, 18 Aug 2012 19:06:26 -0500
_______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2012-08/msg00324.html (8,057 bytes)

245. Re: [Amps] Schematics  for 4CX250B GG HF amplifier (score: 1)
Author: donroden@hiwaay.net
Date: Sat, 18 Aug 2012 19:11:54 -0500
It was the seventies Carl......... We were so poor that we couldn't afford IMD. Don W4DNR _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting
/archives//html/Amps/2012-08/msg00325.html (7,874 bytes)

246. Re: [Amps] Schematics  for 4CX250B GG HF amplifier (score: 1)
Author: donroden@hiwaay.net
Date: Sun, 19 Aug 2012 10:01:02 -0500
LOL !! Yep, we were too busy growing our hair and wearing bellbottoms to worry about IMD. Most receivers intercept points weren't good enough to distinguish between a clean amp and a dirty one anyway
/archives//html/Amps/2012-08/msg00327.html (9,872 bytes)

247. Re: [Amps] Multi-Amp w/ Power Combiners (score: 1)
Author: donroden@hiwaay.net
Date: Fri, 24 Aug 2012 11:47:37 -0500
Seen it done on 75 Meters with a pair of 30S-1s. Don W4DNR _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2012-08/msg00384.html (9,771 bytes)

248. Re: [Amps] Multi-Amp w/ Power Combiners (score: 1)
Author: donroden@hiwaay.net
Date: Sat, 25 Aug 2012 22:16:08 -0500
Only if you didn't understand how it worked and how to keep the phases correct. Operating correctly, it was the loudest momma on the AM band. Don W4DNR _______________________________________________
/archives//html/Amps/2012-08/msg00430.html (9,124 bytes)

249. Re: [Amps] urban myth and transmitting tubes (score: 1)
Author: donroden@hiwaay.net
Date: Mon, 27 Aug 2012 02:49:10 -0500
They run in a world where nitrous oxide powered big-block 454s drive four to six custom mounted three phase alternators. Vehicle of choice is usually a GMC Suburban, and the back end is the Amp.... "
/archives//html/Amps/2012-08/msg00463.html (9,539 bytes)

250. Re: [Amps] urban myth and transmitting tubes (score: 1)
Author: donroden@hiwaay.net
Date: Mon, 27 Aug 2012 08:26:01 -0500
No doubt, Jim, but I've seen the "Big-Boys" with their elaborate "Mo-Biles". One told me that at one *Shoot-Out* at a motel near Hartsfield Airport south of Atlanta, the Airport Security Police came
/archives//html/Amps/2012-08/msg00469.html (8,095 bytes)

251. Re: [Amps] current threads about silver solder and resoldering (score: 1)
Author: donroden@hiwaay.net
Date: Tue, 28 Aug 2012 03:06:09 -0500
I have several rolls of 63/37 that I hoarded before POS ....er ROH Don W4DNR _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/
/archives//html/Amps/2012-08/msg00498.html (8,414 bytes)

252. Re: [Amps] WC1M summary on 87a (score: 1)
Author: donroden@hiwaay.net
Date: Fri, 07 Sep 2012 01:06:42 -0500
For all of you guys who called me or thought me a crazy inept owner of an 87a................. Everything just IS. Don W4DNR _______________________________________________ Amps mailing list Amps@con
/archives//html/Amps/2012-09/msg00106.html (6,750 bytes)

253. Re: [Amps] Zener Screen Regulators (score: 1)
Author: donroden@hiwaay.net
Date: Fri, 07 Sep 2012 18:46:19 -0500
If a negative charge flows left, then a positive charge appears to flow right. Yes, only the electron "physically" moves. The electron goes round and round ......... Whoa-ho-ho-ho-ho-ho and it comes
/archives//html/Amps/2012-09/msg00120.html (9,450 bytes)

254. Re: [Amps] SS Amp questions (score: 1)
Author: donroden@hiwaay.net
Date: Sun, 09 Sep 2012 17:49:43 -0500
Are you casting asparagus on my cooking? Curley Howard _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2012-09/msg00142.html (7,241 bytes)

255. Re: [Amps] Amplifier Tuning Device (score: 1)
Author: donroden@hiwaay.net
Date: Mon, 10 Sep 2012 12:54:53 -0500
I have talked with the developer of Ham Radio Deluxe about adding a two-tone test audio file in their software. If anyone has access to COOL EDIT PRO , ADOBE AUDITION , or similar broadcast editing s
/archives//html/Amps/2012-09/msg00148.html (7,678 bytes)

256. Re: [Amps] Amplifier Tuning Device (score: 1)
Author: donroden@hiwaay.net
Date: Mon, 10 Sep 2012 12:55:05 -0500
I have talked with the developer of Ham Radio Deluxe about adding a two-tone test audio file in their software. If anyone has access to COOL EDIT PRO , ADOBE AUDITION , or similar broadcast editing s
/archives//html/Amps/2012-09/msg00149.html (7,244 bytes)

257. Re: [Amps] Amplifier Tuning Device (score: 1)
Author: donroden@hiwaay.net
Date: Mon, 10 Sep 2012 14:26:21 -0500
Quoting "Bill, W6WRT" <dezrat1242@yahoo.com>: REPLY: One thing to be wary of with any pulse type tuning device is they do not load down the power supply fully. When you go to a full carrier and the P
/archives//html/Amps/2012-09/msg00156.html (8,612 bytes)

258. Re: [Amps] Amplifier Tuning Device (score: 1)
Author: donroden@hiwaay.net
Date: Mon, 10 Sep 2012 14:32:05 -0500
73, Jim N7CXI Heloooooooooooooooooooooooooooooooooooooooooooooooo memory three on my TS-2000 voice recorder. Don W4DNR _______________________________________________ Amps mailing list Amps@contestin
/archives//html/Amps/2012-09/msg00158.html (8,320 bytes)

259. Re: [Amps] Pulser (score: 1)
Author: donroden@hiwaay.net
Date: Mon, 10 Sep 2012 19:27:15 -0500
Keeps the three phase peak demand lower. Don W4DNR I really don't understand why anyone feels the need to use a pulser for tuneup. If your amp can't do full power for the few seconds needed for a tun
/archives//html/Amps/2012-09/msg00177.html (8,175 bytes)

260. Re: [Amps] 8877 Grid Current (score: 1)
Author: donroden@hiwaay.net
Date: Wed, 19 Sep 2012 21:29:13 -0500
Metering errors ?? Don W4DNR The 77DX tube is likely getting soft (or will be) as 100 ma is considered the absolute safe maximum and at that point you are also likely well over the legal limit. Reduc
/archives//html/Amps/2012-09/msg00258.html (8,993 bytes)


This search system is powered by Namazu