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Total 311 documents matching your query.

221. [Amps] Transformers needed (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Mon, 30 Jun 2008 19:27:51 -0400
As some of you are aware, I am in the component gathering stage of building a 4CX1500B amp and I need a filament transformer 6.3V @ 10A with center tap. Also am looking for a quality HV transformer,
/archives//html/Amps/2008-06/msg00241.html (6,746 bytes)

222. [Amps] B&W 852 Impedance Measurements (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Thu, 3 Jul 2008 11:42:06 -0400
The B&W 852 that I bought arrived today and is in good condition. I took some inductance measurements for each of the band positions and found that all of them are low as compared to what I thought t
/archives//html/Amps/2008-07/msg00025.html (7,250 bytes)

223. [Amps] Silver Strap (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Mon, 7 Jul 2008 12:15:17 -0400
Anyone have some silver strap they can spare? I need enough to make a 10M coil for the B&W 852 and need some to route the RF around. 5 feet would do me. It should be ±1/2" wide and ±.040" thick but b
/archives//html/Amps/2008-07/msg00054.html (6,377 bytes)

224. Re: [Amps] Silver Strap (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Tue, 8 Jul 2008 13:57:08 -0400
But silver plated inductors look so classy. Using bare copper is tacky, shows poor moral fiber. Of course gold plating would look good too but I prefer the understated elegance of silver appearance.
/archives//html/Amps/2008-07/msg00063.html (9,869 bytes)

225. [Amps] Plate transformer (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Tue, 8 Jul 2008 19:11:11 -0400
I am still looking for a plate transformer, something that will deliver 2000-3000VAC @ 1A CCS give or take. If you have something that you don't use, please contact me. Bob W6TR _____________________
/archives//html/Amps/2008-07/msg00073.html (6,498 bytes)

226. [Amps] Drake L7 Plate Choke (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Wed, 9 Jul 2008 14:55:02 -0400
Can someone provide me the specs for the Drake L7 plate choke, core material, Diameter, wire gauge, # turns, etc. Bob W6TR _______________________________________________ Amps mailing list Amps@conte
/archives//html/Amps/2008-07/msg00092.html (6,293 bytes)

227. Re: [Amps] cooling chimney? (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Mon, 14 Jul 2008 16:22:03 -0400
I have always been told that the most important characteristic of cooling glass tubes is that you have to cool the part of the plate cap where it enters the top of the glass envelope. Overheating at
/archives//html/Amps/2008-07/msg00129.html (10,273 bytes)

228. Re: [Amps] Air variable pitting - repairable? (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Sat, 19 Jul 2008 17:04:54 -0400
Why not just order a replacement C2 from TT? Bob W6TR -- Original Message -- From: "Jeff Maass" <jmaass@k8nd.com> To: <amps@contesting.com> Sent: Saturday, July 19, 2008 4:59 PM Subject: [Amps] Air v
/archives//html/Amps/2008-07/msg00154.html (8,782 bytes)

229. Re: [Amps] Coax needed (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Sun, 20 Jul 2008 10:14:47 -0400
Do a search on Google for coaxial cable specs. There you will find a website called RF Cafe. It is the first one on the Google list. You are looking for ST(Solid Teflon dielectric. 303 is not the onl
/archives//html/Amps/2008-07/msg00167.html (8,510 bytes)

230. Re: [Amps] Re Choke Formers.. (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Mon, 21 Jul 2008 01:33:42 -0400
Maybe you are referring to Truarc retainers? They are "C" shaped with a little hole in each end. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.con
/archives//html/Amps/2008-07/msg00182.html (8,237 bytes)

231. [Amps] Amp Parts Needed (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Sat, 2 Aug 2008 00:55:24 -0400
I am coming down the home stretch on my part gathering search for my pair of 4CX1500B grid driven amplifier. Here is what I still need: 17x17" perforated aluminum RF Plate Choke. Prefer a L7 choke Si
/archives//html/Amps/2008-08/msg00008.html (6,755 bytes)

232. [Amps] Lonely (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Mon, 11 Aug 2008 19:20:55 -0400
Help me! I just unsubscribed from the FlexRadio reflector and I feel so lonely. No more 100+ messages per day on topics like "where are the knobs" or "I just downloaded the latest Beta software and n
/archives//html/Amps/2008-08/msg00061.html (6,997 bytes)

233. [Amps] Eimac Socket Clips (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Sat, 16 Aug 2008 20:46:31 -0400
Anyone have the clips that attach the SK-800B socket to the chassis. They are little L shaped clips that are silver plated. I need 3. Thanks, Bob W6TR _______________________________________________
/archives//html/Amps/2008-08/msg00106.html (6,299 bytes)

234. [Amps] Red Silicone Rubber Sheets (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Sun, 17 Aug 2008 12:10:39 -0400
Anyone need some of this stuff? It comes in .1875" thickness and I have a few pieces 12" x 26". Works great for tube chimneys. $20 plus shipping for 1 sheet. Bob W6TR ________________________________
/archives//html/Amps/2008-08/msg00108.html (6,416 bytes)

235. Re: [Amps] Amp Supply LK800 trouble (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Thu, 21 Aug 2008 13:34:53 -0400
The blocking cap should be in series with the tube anode and the coil of the Pi network. The RF choke output connects between the tube anode and the blocking cap. Is that the way it is connected? Als
/archives//html/Amps/2008-08/msg00119.html (9,071 bytes)

236. [Amps] Time Delay Relays (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Fri, 22 Aug 2008 22:31:06 -0400
I am in need of 2 time delay(ON) relays with adjustable time of .1 to 10 sec(more or less). Need to have 24VDC input voltage and need to be plug in type. I'm thinking Potter Brumfield or similar. The
/archives//html/Amps/2008-08/msg00125.html (6,445 bytes)

237. [Amps] Silicone Rubber Sheets (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Sat, 23 Aug 2008 15:36:30 -0400
I still have a quantity of Silicone rubber sheets available for $20 + $10 shipping via USPS Priority Mail. These sheets make great ceramic tube chimneys. This material is rated at 500*F. Size of the
/archives//html/Amps/2008-08/msg00128.html (6,492 bytes)

238. [Amps] Silicone Rubber Sheets (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Wed, 27 Aug 2008 20:43:30 -0400
I still have some Silicone rubber sheets available. They measure 26" x 12" x .1875" thick This is great for making chimneys for ceramic amplifier tubes as this material will handle 450*F. McMaster Ca
/archives//html/Amps/2008-08/msg00143.html (6,936 bytes)

239. Re: [Amps] Silicone Rubber Sheets (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Wed, 27 Aug 2008 23:25:31 -0400
I have personally used both the 1/8th and the 3/16" material for 8877's, 3CX3000's, 3CX1200's and plan on using it with my latest project, a pair of 4CX1500B's and I have found that the increased sti
/archives//html/Amps/2008-08/msg00147.html (11,592 bytes)

240. [Amps] Zener Diode Needed (score: 1)
Author: "Bob Maser" <bmaser@tampabay.rr.com>
Date: Sun, 7 Sep 2008 16:34:58 -0400
I need a 5W 56V zener for my Tetrode board. It is a 1N5370B. Anyone have one that they are not using? Also, I believe that zeners can be placed in series to achieve higher voltage. Are there caveats
/archives//html/Amps/2008-09/msg00036.html (6,984 bytes)

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