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Total 209 documents matching your query.

161. Re: [Amps] (no subject) (score: 1)
Author: Roger <sub1@rogerhalstead.com>
Date: Fri, 04 Dec 2009 01:27:25 -0500
What did they sell for new? Although recent sales have been in the $1000 range and a search shows a dealer selling a used one "like new" with new tubes for $1000 It's more than I'd go, but were I aft
/archives//html/Amps/2009-12/msg00104.html (7,097 bytes)

162. Re: [Amps] (no subject) (score: 1)
Author: Dave White <mausoptik@btinternet.com>
Date: Fri, 4 Dec 2009 11:06:04 +0000
It's the unused-for-30-years bit that would worry me. I've seen too many of these things go *BOOM* when fired up or just suffer from ongoing reliability issues. Cheers Dave G0OIL What did they sell f
/archives//html/Amps/2009-12/msg00106.html (7,294 bytes)

163. Re: [Amps] (no subject) (score: 1)
Author: Roger <sub1@rogerhalstead.com>
Date: Fri, 04 Dec 2009 14:33:49 -0500
I've never had a problem with an 813...so far. PL-172s OTOH... 73 Roger (K8RI) _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailma
/archives//html/Amps/2009-12/msg00116.html (7,977 bytes)

164. Re: [Amps] (no subject) (score: 1)
Author: Dave White <mausoptik@btinternet.com>
Date: Fri, 4 Dec 2009 23:26:32 +0000
Hi Roger It's not so much the tubes I'm worried about as the rest of the amplifier. About 10 years ago I bought four unopened 1961-dated Penta 4-1000As in the JAN boxes with what looks like the origi
/archives//html/Amps/2009-12/msg00118.html (8,129 bytes)

165. [Amps] (no subject) (score: 1)
Author: richard courtway <courtway@syix.com>
Date: Sun, 14 Mar 2010 08:52:50 -0700
Good Morning. Have been on the amp list for a week, now - and must say that all has been very illuminating. Is it all about art , science or voodoo - haw. ALL my books have described electronica as T
/archives//html/Amps/2010-03/msg00249.html (6,544 bytes)

166. [Amps] (no subject) (score: 1)
Author: "Jim Thomson" <Jim.thom@telus.net>
Date: Sun, 28 Mar 2010 06:04:53 -0700
REPLY: So THAT is where all this voodoo comes from! I wonder what Orr would have thought of the disk experiment we just did. Twice. You are right though, I will have to GET ONE OF HIS BOOKS. Like I s
/archives//html/Amps/2010-03/msg00713.html (9,353 bytes)

167. Re: [Amps] (no subject) (score: 1)
Author: "Carl" <km1h@jeremy.mv.com>
Date: Sun, 28 Mar 2010 09:17:42 -0400
You can easily prove the phase relationship with a dual trace scope. Do it with a FET or 6C4 if you want, do it at audio or RF, makes no difference. Do it grid driven and GG and then tell me the rel
/archives//html/Amps/2010-03/msg00716.html (10,384 bytes)

168. Re: [Amps] (no subject) (score: 1)
Author: "Bill, W6WRT" <dezrat1242@yahoo.com>
Date: Sun, 28 Mar 2010 09:33:23 -0700
ORIGINAL MESSAGE: REPLY: When the cathode is driven negative, the plate goes negative too. Sounds like in-phase to me. If you want out-of-phase, grid drive it. Of course, you can take the in-phase si
/archives//html/Amps/2010-03/msg00721.html (8,280 bytes)

169. Re: [Amps] (no subject) (score: 1)
Author: "Bill, W6WRT" <dezrat1242@yahoo.com>
Date: Sun, 28 Mar 2010 09:38:25 -0700
ORIGINAL MESSAGE: REPLY: Nope, don't have any Orr books, but I have bids in right now on a couple on eBay. I'm an ARRL publications fan, but I'm willing to see what Orr has to say. I have a bid on on
/archives//html/Amps/2010-03/msg00722.html (8,116 bytes)

170. Re: [Amps] (no subject) (score: 1)
Author: "Bill, W6WRT" <dezrat1242@yahoo.com>
Date: Sun, 28 Mar 2010 09:46:24 -0700
ORIGINAL MESSAGE: REPLY: Grounded grid: Cathode goes negative, plate goes negative. In phase. Grounded cathode: Grid goes negative, plate goes positive. Out of phase. Sometimes even well-educated peo
/archives//html/Amps/2010-03/msg00723.html (7,921 bytes)

171. Re: [Amps] (no subject) (score: 1)
Author: "Bill, W6WRT" <dezrat1242@yahoo.com>
Date: Sun, 28 Mar 2010 10:32:47 -0700
ORIGINAL MESSAGE: REPLY: How many books are there? If I were a younger man I could try to list them, but I'm already 67. 73, Bill W6WRT _______________________________________________ Amps mailing li
/archives//html/Amps/2010-03/msg00725.html (7,528 bytes)

172. Re: [Amps] (no subject) (score: 1)
Author: "Carl" <km1h@jeremy.mv.com>
Date: Sun, 28 Mar 2010 21:03:54 -0400
On this we agree (-; Carl KM1H _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2010-03/msg00731.html (8,444 bytes)

173. [Amps] (no subject) (score: 1)
Author: Lee Buller <k0wa@swbell.net>
Date: Thu, 29 Apr 2010 11:53:01 -0700 (PDT)
Can anyone tell me the following.... Dentron Clipperton - L SSB Plate Voltage = CW Pate Voltage = Maximum Current = The instruction manual on Edbris doesn't clearly state any of that information. Lee
/archives//html/Amps/2010-04/msg00693.html (7,132 bytes)

174. Re: [Amps] (no subject) (score: 1)
Author: n8de@thepoint.net
Date: Thu, 29 Apr 2010 15:47:38 -0400
According to my Clipperton-L Operating Manual: DC Plate Voltage: SSB (Idle +2700v approximate) CW (Idle +1800v approximate) (There are NO parameters for plate current) Instructions say to tune for ma
/archives//html/Amps/2010-04/msg00697.html (8,361 bytes)

175. Re: [Amps] (no subject) (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Fri, 30 Apr 2010 06:53:14 +0800
Ah but that was written in the days before your power restrictions were lifted. It would be interesting to note the difference in settings obtained by tuning up that way and by properly tuning with h
/archives//html/Amps/2010-04/msg00700.html (9,554 bytes)

176. [Amps] (no subject) (score: 1)
Author: "Jim Brown" <jim@audiosystemsgroup.com>
Date: Fri, 07 May 2010 08:09:15 -0700
In cleaning out the estate of a local silent key, we've come across a bunch of antique tubes. Here's a list. 210 800 815 955 2C43 344A Western Electric 3C24 from 1944 CUE838 S200 Matsushita VT127A VT
/archives//html/Amps/2010-05/msg00090.html (7,384 bytes)

177. [Amps] (no subject) (score: 1)
Author: "Phil LaMarche" <plamarc1@verizon.net>
Date: Mon, 07 Jun 2010 12:26:57 -0400
Vacuum Variable CAP 5-500 Pf at 10 KV.. NEW..$100.00 + $ 20.00 Shipping Phil Philip LaMarche LaMarche Enterprises, Inc Phil@LaMarcheEnterprises.com www.LaMarcheEnterprises.com <http://www.lamarcheent
/archives//html/Amps/2010-06/msg00076.html (6,663 bytes)

178. [Amps] (no subject) (score: 1)
Author: Dan Hall <lifetouched@hotmail.com>
Date: Mon, 11 Oct 2010 10:11:13 -0400
I added 2 extra 259's that are inline only when keyed with 24 inch jumpers works fine 15 meters on down ( havent tried 10 ) with a low power manual tuner you can tune your input with no hv just key i
/archives//html/Amps/2010-10/msg00180.html (6,555 bytes)

179. [Amps] (no subject) (score: 1)
Author: idaho gn <idahogn@q.com>
Date: Wed, 27 Oct 2010 08:00:06 +0000
hello, does anyone have a input band switch for a sb220? i need the front ceramic wafer thanks shawn kd7edq _______________________________________________ Amps mailing list Amps@contesting.com http:
/archives//html/Amps/2010-10/msg00401.html (6,784 bytes)

180. [Amps] (no subject) (score: 1)
Author: Chris Wright <vk2uw@yahoo.com>
Date: Wed, 10 Nov 2010 02:28:03 -0800 (PST)
Re:   Ya know, some of you guys reek of double standards and just plain old sour grapes...This site regularly promotes building and using amplifiers with YC156 tubes and many other high dissipation t
/archives//html/Amps/2010-11/msg00137.html (7,339 bytes)

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