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Total 573 documents matching your query.

141. Re: [Amps] New BVT in the family (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Sat, 24 Mar 2012 06:10:30 -0700
I like it! Looks great. 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2012-03/msg00253.html (7,586 bytes)

142. Re: [Amps] Guidelines.....toroids for tank ckts (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Sat, 24 Mar 2012 18:00:16 -0700
See the latest ARRL handbooks for the 3CX1500 amplifier by Jerry K8RA. He uses toroids for 80 and 160. 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.co
/archives//html/Amps/2012-03/msg00266.html (9,144 bytes)

143. [Amps] Jennings UCSL-1000 Wanted (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Sun, 25 Mar 2012 14:43:52 -0700
Does anyone have a Jennings UCSL-1000 (1000 PF 3 KV, glass) vacuum capacitor laying around they want to sell? Please let me know. Thanks! 73 Jim W7RY _______________________________________________ A
/archives//html/Amps/2012-03/msg00272.html (6,532 bytes)

144. Re: [Amps] SWR increase on SB-220 input - my face is red (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Tue, 1 May 2012 16:46:59 -0700
Be sure to replace the socket or replace the female contact itself. And check all the others too! 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com htt
/archives//html/Amps/2012-05/msg00039.html (9,117 bytes)

145. Re: [Amps] Loudenboomer (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Sat, 26 May 2012 07:52:11 -0700
They are a cute little amp! They did not have cutoff bias or a T-R relay internal. The 3-400 just sat there are ran red all the time. The input to the tube is quite unique. It has a tapped filament c
/archives//html/Amps/2012-05/msg00341.html (7,479 bytes)

146. Re: [Amps] DRAKE L4B ON EBAY (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Tue, 5 Jun 2012 07:07:34 -0700
Nice language Mike! Do you eat with that mouth? 73 Jim W7RY Christ! The final bid was $1597! What the hell was his reserve?! Way more than I would pay for an L4B but he obviously didn't WANT to sell
/archives//html/Amps/2012-06/msg00019.html (9,503 bytes)

147. Re: [Amps] Dummy Load Blues (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Thu, 14 Jun 2012 18:12:08 -0700
These are probably a better buy... http://www.ebay.com/itm/2-ea-800-Watt-Hybrid-100-ohm-Load-Resistor-to-500-mHz-/390429774095?pt=LH_DefaultDomain_0&hash=item5ae76d910f 73 Jim W7RY These make it easy
/archives//html/Amps/2012-06/msg00121.html (12,981 bytes)

148. Re: [Amps] 8877 date codes (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Thu, 14 Jun 2012 21:37:07 -0700
The date code is 4 digits. 2303 would be the 23rd week of 2003. 2398 would be 23rd week of 1998. 73 Jim W7RY Is the date code on an 8877 a 4-digit number or a 5-digit number? Looking at one that has
/archives//html/Amps/2012-06/msg00130.html (7,656 bytes)

149. Re: [Amps] filament instant heating query / simple remedy (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Sun, 17 Jun 2012 07:22:35 -0700
-Has anyone tried an approach like Carel, PC5M, with a microprocessor -controlled soft start for the filament. The microprocessor controls an -optical triac driver The triac is turned on and off over
/archives//html/Amps/2012-06/msg00220.html (9,659 bytes)

150. Re: [Amps] Acoustic Noise Comparison (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Fri, 22 Jun 2012 21:19:26 -0700
Felt works great for soundproofing. Remember the thick felt typewriter pads? A square under each foot does wonders to keep the sound from transferring to your desk/operating table. 73 Jim W7RY Hi, I
/archives//html/Amps/2012-06/msg00379.html (10,513 bytes)

151. Re: [Amps] Coax for MHV connectors? (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Sat, 23 Jun 2012 16:34:56 -0700
I use RG59 on mine. Works with 4KV and has been for years. 73 Jim W7RY I need to make up some MHV cables for a 4KV 2A max DC supply, (both B+ and B-) and I made the mistake of looking up the voltage
/archives//html/Amps/2012-06/msg00386.html (8,036 bytes)

152. Re: [Amps] Oscilloscope Purchase (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Tue, 26 Jun 2012 22:03:04 -0700
I use a Rigol DS-1000 series of digital scopes for such a thing. Works perfectly! I have attached a screen shot of my testing of the Icom IC7600 for RF VS. amplifier relay in full QSK mode. 73 Jim W7
/archives//html/Amps/2012-06/msg00422.html (9,029 bytes)

153. Re: [Amps] 8877 Plate Voltage (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Sat, 30 Jun 2012 15:50:00 -0700
It will be VERY EASY to drive at this voltage. Probably around 25 watts for 1500 out if its a good tube. I'm thinking of putting a 3 or 4 dB attenuator into the input to get the drive up to around 70
/archives//html/Amps/2012-06/msg00455.html (8,563 bytes)

154. Re: [Amps] 8877 Plate Voltage (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Sun, 1 Jul 2012 07:16:44 -0700
I dont use a suppressor. But I do use the Eimac socket and good shielding. My 8877 is perfectly stable at 4100V. See: http://s900.photobucket.com/albums/ac206/w7ry/8877%20Amplifier/ 73 Jim W7RY Start
/archives//html/Amps/2012-07/msg00003.html (9,007 bytes)

155. Re: [Amps] AL-1200 plate choke go bang (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Thu, 5 Jul 2012 20:53:39 -0700
I dont think the AL1500 uses a parasitic suppressor does it? 73 Jim W7RY That suppressor was "borrowed" from a description I gave back in the late 80's to the YCCC that I used to tame a couple of mem
/archives//html/Amps/2012-07/msg00029.html (9,027 bytes)

156. Re: [Amps] [TowerTalk] Ameriton RCS4 and N Connectors (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Sun, 8 Jul 2012 12:08:09 -0700
One more thing I forgot to mention about the PROPER installation of a PL-259. Make sure you clean all the flux from the center pin after you solder it! Also, when soldering the center pin, DO NOT get
/archives//html/Amps/2012-07/msg00125.html (8,807 bytes)

157. Re: [Amps] Filament Xfmr (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Sun, 8 Jul 2012 12:45:37 -0700
I have not died in a house fire. Your language is a little coarse isn't it? And it works fine. I used and others are advised to use Teflon wire. No go back into the hole you climbed out of! 73 Jim W7
/archives//html/Amps/2012-07/msg00130.html (9,086 bytes)

158. [Amps] Drake L4B Blower Needed (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Mon, 9 Jul 2012 20:56:05 -0700
Looking for a complete L4B blower assembly. Motor, squirrel cage, brackets that hold it to the back panel... All I have is the black housing. Thanks 73 Jim W7RY ______________________________________
/archives//html/Amps/2012-07/msg00152.html (6,515 bytes)

159. Re: [Amps] [TowerTalk] Sources of Coax Relays (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Wed, 11 Jul 2012 21:43:44 -0700
I have 6 of these: For a power handling chart: http://www.relcommtech.com/power_print.html Details @ http://www.rfparts.com/pdf_docs/coaxial_relays/RDL-SR012_DATA_SHEET.pdf $100.00 each. They are 12
/archives//html/Amps/2012-07/msg00170.html (7,932 bytes)

160. [Amps] TL-922 QSK (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Thu, 12 Jul 2012 06:59:37 -0700
TL922 QSK circuit boards and universal step start boards are still available. SB-220 and SB-200 coming soon! Please see: http://www.qrz.com/db/w7ry 73 Jim W7RY _______________________________________
/archives//html/Amps/2012-07/msg00171.html (6,511 bytes)

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