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121. Re: [Amps] Damage? --> OT (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Fri, 25 Jul 2008 20:22:26 -0400
Gary wrote in part: After visiting one of the "high end" sites I am tempted to offer "extreme accuracy" software on my site. - Jim Tonne www.TonneSoftware.com And I would be hard-pressed to keep a st
/archives//html/Amps/2008-07/msg00274.html (8,823 bytes)

122. Re: [Amps] EB104 (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Tue, 2 Sep 2008 14:02:56 -0400
Anthony and Mark: I browsed through the WM5Z amplifier page and think it is nicely done. I want to point out that at that power level you really should be using diplexers to dissipate the harmonic en
/archives//html/Amps/2008-09/msg00004.html (7,269 bytes)

123. Re: [Amps] 3-500Z glitch resistor (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Wed, 17 Sep 2008 14:38:54 -0400
For very high-power systems (megawatt) I have seen an ignitron used. "Hockey puck" SCRs for moderate power, (several kilowatts). Stud-mounted SCRs for all else. - JimT _______________________________
/archives//html/Amps/2008-09/msg00176.html (8,320 bytes)

124. Re: [Amps] Crowbars (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Thu, 18 Sep 2008 19:14:03 -0400
John et al: While we are on the subject of crowbars and other ways of "dumping" a power supply, let me share with y'all (I am learning to speak English in Tennessee!) a true story. Way back in 1987 I
/archives//html/Amps/2008-09/msg00179.html (8,825 bytes)

125. Re: [Amps] Transformer reliability? 34yr old Collins... (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Thu, 2 Oct 2008 16:03:06 -0400
Vic: What is the transformer part or model number? Does the owner know what apparatus it came out of? - Jim WB6BLD _______________________________________________ Amps mailing list Amps@contesting.co
/archives//html/Amps/2008-10/msg00011.html (8,598 bytes)

126. Re: [Amps] Transformer reliability? 34yr old Collins... (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Fri, 3 Oct 2008 09:42:08 -0400
I have a request in to a fellow who may very well know the details on that transformer. If it is a high voltage transformer from a broadcast rig I suspect it is at about the 500 to 1000 watt level, j
/archives//html/Amps/2008-10/msg00014.html (7,824 bytes)

127. Re: [Amps] Meter Face Making (score: 1)
Author: "Jim Tonne" <Tonne@Comcast.net>
Date: Thu, 4 Dec 2008 13:00:58 -0500
Bob: To make a scale with -100-0-+100 tics, set scale left end to -100 and scale length to 200. An illustration of this situation is shown in the Help system. Scroll to "Scale design", then to Scale
/archives//html/Amps/2008-12/msg00089.html (8,258 bytes)

128. Re: [Amps] Meter Face Making (score: 1)
Author: "Jim Tonne" <Tonne@Comcast.net>
Date: Thu, 4 Dec 2008 13:05:24 -0500
Details are here: http://tonnesoftware.com/meter.html - Jim Tonne Tonne Software _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mai
/archives//html/Amps/2008-12/msg00090.html (9,742 bytes)

129. Re: [Amps] HV wire (score: 1)
Author: "Jim Tonne" <Tonne@Comcast.net>
Date: Mon, 22 Dec 2008 15:14:45 -0500
Glen: Why not? Just curious. - Jim WB6BLD _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2008-12/msg00290.html (7,693 bytes)

130. Re: [Amps] Question for All Amp Builders... (score: 1)
Author: "Jim Tonne" <Tonne@Comcast.net>
Date: Fri, 20 Feb 2009 14:04:22 -0500
Scott: You really should look at some books to get an idea of what is going on with the PI net and its bigger brother the PI-EL net. Books are great! Once you have at least a general idea of how to p
/archives//html/Amps/2009-02/msg00594.html (8,736 bytes)

131. Re: [Amps] 810 Amplifier (score: 1)
Author: "Jim Tonne" <Tonne@Comcast.net>
Date: Fri, 13 Mar 2009 13:10:48 -0400
Come one, guys, lock it up and forget the remarks. I dropped out of one group because the moderator didn't step in soon enouogh. Yes, I have a delete button but it only works on e-mails, not flammers
/archives//html/Amps/2009-03/msg00383.html (8,735 bytes)

132. Re: [Amps] Measuring meter pointer deflection (score: 1)
Author: "Jim Tonne" <Tonne@Comcast.net>
Date: Mon, 16 Mar 2009 10:55:09 -0400
Gerald and Paul: Most meters I have seen are 90 and 100 degrees except for super-cheapies such as might be found in battery chargers and so on. Those tend to be down at 60 degrees or worse. I agree w
/archives//html/Amps/2009-03/msg00438.html (7,368 bytes)

133. Re: [Amps] OT: Can someone ID this tube and its use ? (score: 1)
Author: "Jim Tonne" <Tonne@Comcast.net>
Date: Wed, 1 Apr 2009 16:46:22 -0400
That "Y" in the designator indicates it was a special tube designed by Tom Yingst. - JimT _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting
/archives//html/Amps/2009-04/msg00014.html (7,678 bytes)

134. Re: [Amps] Can someone ID this tube and its use ? (score: 1)
Author: "Jim Tonne" <Tonne@Comcast.net>
Date: Thu, 2 Apr 2009 09:44:10 -0400
John Lyles wrote in part: That's what I was told while I was at Continental. The year was probaby 1986 or 1987. He was (is) apparently a true tube guru. - JimT _______________________________________
/archives//html/Amps/2009-04/msg00027.html (6,995 bytes)

135. Re: [Amps] Can someone ID this tube and its use ? (score: 1)
Author: "Jim Tonne" <Tonne@Comcast.net>
Date: Thu, 2 Apr 2009 13:33:22 -0400
John: I think I was indeed misled. JPhred Riley indicated just a bit ago that Tom didn't have a hand in *all* of the Y tubes. And I agree: someone ask him at NAB how he fitted in with the Y tubes. -
/archives//html/Amps/2009-04/msg00033.html (7,674 bytes)

136. [Amps] Fw: "Y" tubes - the real scoop (score: 1)
Author: "Jim Tonne" <Tonne@Comcast.net>
Date: Mon, 6 Apr 2009 16:00:24 -0400
Gents: I made a comment several days ago that I had been told decades ago while I was at Continental that Tom Yingst was behind the "Y" series of tubes from Eimac. It turns out that I was being fed a
/archives//html/Amps/2009-04/msg00069.html (8,032 bytes)

137. Re: [Amps] Power supply question (score: 1)
Author: "Jim Tonne" <Tonne@Comcast.net>
Date: Sun, 12 Apr 2009 13:59:25 -0400
Alex wrote in part: What a beautiful candidate for a pulse-width modulator for AM or Kahn-method SSB! That is precisely what the 500 kW shortwave transmitters by Continental do. 48 separate 700 volt
/archives//html/Amps/2009-04/msg00142.html (7,709 bytes)

138. Re: [Amps] multiple supplies in series (score: 1)
Author: "Jim Tonne" <Tonne@Comcast.net>
Date: Sun, 12 Apr 2009 19:29:54 -0400
John Lyles wrote in part: Actually they don't all operate at 70 kHz. The end result is as you describe but each individual switch operates at 70 / 48 kHz. This allows the use of switches that have a
/archives//html/Amps/2009-04/msg00144.html (7,565 bytes)

139. [Amps] European meterscale style: name? (score: 1)
Author: "Jim Tonne" <Tonne@Comcast.net>
Date: Sun, 24 May 2009 18:04:37 -0400
Gents: I am upgrading the meterscale drawing program "Meter" and would like to know the commonly-used name for the meter style which has the bearing in the lower-right corner. Is this "DIN"? "Quadran
/archives//html/Amps/2009-05/msg00181.html (6,888 bytes)

140. Re: [Amps] European meterscale style: name? (score: 1)
Author: "Jim Tonne" <Tonne@Comcast.net>
Date: Sun, 24 May 2009 19:57:11 -0400
Gary: Thanks for your kind words and feedback! The "Quadrant" style should see light of day within a few days. The only remaining bridge to cross is the positioning of the individual scale labels. Ne
/archives//html/Amps/2009-05/msg00183.html (7,142 bytes)

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