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References: [ +from:dezrat1242@ispwest.com: 233 ]

Total 233 documents matching your query.

141. Re: [Amps] Anyone using the OM2500 HF Amp? (score: 1)
Author: Bill Turner <dezrat1242@ispwest.com>
Date: Mon, 02 Jan 2006 10:33:08 -0800
ORIGINAL MESSAGE: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Didn't see anything about FCC type approval. Is there? 73, Bill W6WRT _______________________________________________ Amps mailing
/archives//html/Amps/2006-01/msg00088.html (7,701 bytes)

142. Re: [Amps] Parasitic suppressor resistor (score: 1)
Author: Bill Turner <dezrat1242@ispwest.com>
Date: Mon, 02 Jan 2006 10:46:10 -0800
ORIGINAL MESSAGE: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I wonder about this too. In my amp, I have a low-Q parallel resonant tank circuit on each band from cathode to ground. Q of about 2
/archives//html/Amps/2006-01/msg00091.html (10,367 bytes)

143. Re: [Amps] ANOTHER FURNACE! (score: 1)
Author: Bill Turner <dezrat1242@ispwest.com>
Date: Mon, 02 Jan 2006 11:30:50 -0800
ORIGINAL MESSAGE: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The link worked for me, but I had to cut and paste part of it because of word wrap. For these kind of long URLs, giving the item nu
/archives//html/Amps/2006-01/msg00096.html (9,212 bytes)

144. Re: [Amps] SHV Connectors & Coax (score: 1)
Author: Bill Turner <dezrat1242@ispwest.com>
Date: Mon, 02 Jan 2006 15:59:13 -0800
ORIGINAL MESSAGE: <snip> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Don'cha just love the "doctors" on these reflectors? 73, Bill W6WRT _______________________________________________ Amps mai
/archives//html/Amps/2006-01/msg00110.html (7,940 bytes)

145. Re: [Amps] Another use for Neon Lamps (score: 1)
Author: Bill Turner <dezrat1242@ispwest.com>
Date: Mon, 02 Jan 2006 21:07:06 -0800
ORIGINAL MESSAGE: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ That's a good idea, but remember that when a neon "fires", its internal resistance drops. Most likely it would continue to glow eve
/archives//html/Amps/2006-01/msg00119.html (8,729 bytes)

146. Re: [Amps] Another use for Neon Lamps (score: 1)
Author: Bill Turner <dezrat1242@ispwest.com>
Date: Tue, 03 Jan 2006 23:15:30 -0800
ORIGINAL MESSAGE: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ You can do the same thing with a 100 watt mobile rig on the 40 or 80 meter bands. A four foot fluorescent will light the whole leng
/archives//html/Amps/2006-01/msg00161.html (8,539 bytes)

147. [Amps] Measuring Q with an SWR analyzer (score: 1)
Author: Bill Turner <dezrat1242@ispwest.com>
Date: Wed, 04 Jan 2006 18:08:24 -0800
A question for the math experts: I would like to measure the Q of a pi network plate circuit directly using an SWR analyzer. Let's say the tube is in circuit with power off. I have connected a 2200 o
/archives//html/Amps/2006-01/msg00167.html (7,055 bytes)

148. Re: [Amps] Is solid Cu 600VAC house wire, good for tank toroids? (score: 1)
Author: Bill Turner <dezrat1242@ispwest.com>
Date: Wed, 04 Jan 2006 22:53:46 -0800
ORIGINAL MESSAGE: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ How much power are you planning to run? 73, Bill W6WRT _______________________________________________ Amps mailing list Amps@conte
/archives//html/Amps/2006-01/msg00170.html (7,547 bytes)

149. Re: [Amps] Measuring Q with an SWR analyzer (score: 1)
Author: Bill Turner <dezrat1242@ispwest.com>
Date: Thu, 05 Jan 2006 05:28:28 -0800
ORIGINAL MESSAGE: <snip> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Thank you, Karl. I am not the mathematician you are so I will have to sit down and examine your formulas in detail. Many tha
/archives//html/Amps/2006-01/msg00182.html (7,943 bytes)

150. Re: [Amps] Measuring Q with an SWR analyzer (score: 1)
Author: Bill Turner <dezrat1242@ispwest.com>
Date: Thu, 05 Jan 2006 05:31:45 -0800
ORIGINAL MESSAGE: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Thank you, Mark. I saved a copy and will examine it in detail soon. Right now, I'm trying to get this amplifier finished in time fo
/archives//html/Amps/2006-01/msg00183.html (8,154 bytes)

151. Re: [Amps] Measuring Q with an SWR analyzer (score: 1)
Author: Bill Turner <dezrat1242@ispwest.com>
Date: Thu, 05 Jan 2006 05:38:09 -0800
ORIGINAL MESSAGE: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Good idea. I also considered building a pi net with known Q and measuring the SWR bandwidth at some specific SWR such as 2:1 and th
/archives//html/Amps/2006-01/msg00184.html (8,399 bytes)

152. Re: [Amps] my little amp project of many hours..maybe 50% done (score: 1)
Author: Bill Turner <dezrat1242@ispwest.com>
Date: Fri, 06 Jan 2006 07:25:01 -0800
May I ask for some more information? It is unusual for a 50 watt resistor to fail in such a manner. If anything they usually go higher in resistance or open up entirely. What was the make of the resi
/archives//html/Amps/2006-01/msg00211.html (8,816 bytes)

153. Re: [Amps] Plate choke and bypassing (score: 1)
Author: Bill Turner <dezrat1242@ispwest.com>
Date: Fri, 06 Jan 2006 19:19:17 -0800
Everything I've ever read on the subject says never use ferrite cores in a resonant circuit. Powdered iron is the preferred material. Ferrite saturates, powdered iron doesn't. 73, Bill W6WRT ~~~~~~~~
/archives//html/Amps/2006-01/msg00235.html (7,303 bytes)

154. Re: [Amps] Plate choke and bypassing (score: 1)
Author: Bill Turner <dezrat1242@ispwest.com>
Date: Fri, 06 Jan 2006 20:36:43 -0800
My mistake. I thought you were talking about the plate tank coil, not the choke. I'be been working with mine, guess I had it on my mind. 73, Bill W6WRT ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/archives//html/Amps/2006-01/msg00237.html (7,842 bytes)

155. [Amps] Tapping a plate tank coil (score: 1)
Author: Bill Turner <dezrat1242@ispwest.com>
Date: Fri, 06 Jan 2006 20:47:54 -0800
I know it is common and accepted practice to short out the turns on an air-core plate tank coil for bandswitching, but is it ok for powdered iron core toroids in that situation? My understanding is t
/archives//html/Amps/2006-01/msg00239.html (6,986 bytes)

156. Re: [Amps] Tapping a plate tank coil (score: 1)
Author: Bill Turner <dezrat1242@ispwest.com>
Date: Fri, 06 Jan 2006 22:02:20 -0800
I thought about having three separate toroids, one each for 160/80/40. That way the flux is not coupled between them and shorting across one or more would have no harmful effect at all. 73, Bill W6WR
/archives//html/Amps/2006-01/msg00241.html (7,474 bytes)

157. Re: [Amps] NEC-think. (score: 1)
Author: Bill Turner <dezrat1242@ispwest.com>
Date: Sat, 07 Jan 2006 16:59:31 -0800
ORIGINAL MESSAGE: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Right you are. I don't know how many keyboards I've tryed (there it goes again) and still kan't fing a goood wun. Bill, W6WRT _____
/archives//html/Amps/2006-01/msg00249.html (7,833 bytes)

158. Re: [Amps] Westinghouse BC Ammeter QX-37 (score: 1)
Author: Bill Turner <dezrat1242@ispwest.com>
Date: Sun, 08 Jan 2006 16:46:54 -0800
ORIGINAL MESSAGE: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ This part of your question puzzles me. I see you are in the US, so you will be running max output of 1500 watts. Most amplifiers ar
/archives//html/Amps/2006-01/msg00257.html (8,420 bytes)

159. Re: [Amps] Westinghouse BC Ammeter QX-37 (score: 1)
Author: Bill Turner <dezrat1242@ispwest.com>
Date: Mon, 09 Jan 2006 06:28:17 -0800
ORIGINAL MESSAGE: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I'm sure your statement is correct in a technical sense, but is more "cleanliness" necessary? I prowl around the bands a lot and th
/archives//html/Amps/2006-01/msg00261.html (8,980 bytes)

160. Re: [Amps] Westinghouse BC Ammeter QX-37 (score: 1)
Author: Bill Turner <dezrat1242@ispwest.com>
Date: Mon, 09 Jan 2006 08:12:48 -0800
ORIGINAL MESSAGE: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Ok, makes sense. I'm not near any active hams, so I've never noticed what you have. I do take exception to the part about "not tech
/archives//html/Amps/2006-01/msg00267.html (10,049 bytes)

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