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Total 192 documents matching your query.

141. Re: [Amps] spray painting metal (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Fri, 31 Jul 2009 18:12:59 -0400
I retired from a major broadcast transmitter equipment manufacurer in Dallas, Texas. While there it was nice to take a small "G job" to the paint guy. Ask him to add it to the next load of Collins g
/archives//html/Amps/2009-07/msg00448.html (8,642 bytes)

142. Re: [Amps] Simpson 260 question (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Mon, 3 Aug 2009 16:34:50 -0400
Val: That link to www.Simpson260.com was just what I needed to find out what batteries are needed in my circa 1961 260! So from a kind of "lurker", many thanks! - Jim W4ENE __________________________
/archives//html/Amps/2009-08/msg00064.html (7,390 bytes)

143. Re: [Amps] Simpson 260 question (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Mon, 3 Aug 2009 17:09:38 -0400
It would be interesting to know both how many "260"s are still out there, and what percentage of them are at least operational. Folks don't build stuff like they used to! If my only problem with a 50
/archives//html/Amps/2009-08/msg00066.html (8,482 bytes)

144. Re: [Amps] SGC-Mini Lini (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Mon, 10 Aug 2009 14:35:39 -0400
Bill WA4LAV et al: Your writeup on the builtin problem with the MiniLini is right on! To add some detail, I understand that the problem was supposedly minimized by using a 250 kHz switching frequency
/archives//html/Amps/2009-08/msg00241.html (8,070 bytes)

145. Re: [Amps] unsubscribe me please (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Mon, 24 Aug 2009 14:39:23 -0400
I see we have an surprisingly large number of children on the Amps list. - Jim W4ENE _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/
/archives//html/Amps/2009-08/msg00454.html (8,776 bytes)

146. Re: [Amps] Unsubscription et all (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Mon, 24 Aug 2009 18:03:40 -0400
To the children: - Jim W4ENE _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2009-08/msg00465.html (7,434 bytes)

147. Re: [Amps] RF deck plate tests (simulating HV?) (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Thu, 10 Sep 2009 19:06:56 -0400
Bill, that information is exact! But you stopped short of actually answering the question. I think you meant to also add on . . . - Jim W4ENE _______________________________________________ Amps mail
/archives//html/Amps/2009-09/msg00146.html (7,856 bytes)

148. Re: [Amps] Sunspots gone? (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Wed, 23 Sep 2009 17:22:08 -0400
Bob: Coming in quite clearly in eastern Tennessee - Jim W4ENE _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2009-09/msg00273.html (7,134 bytes)

149. Re: [Amps] PEP Reading Wattmeter (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Mon, 5 Oct 2009 16:52:27 -0400
Regarding this power measurement thing, I remember using the calorimeter method while I was at Continental Electronics. All the rigs of 100 kW and above were measured that way. I agree with the gener
/archives//html/Amps/2009-10/msg00109.html (8,427 bytes)

150. Re: [Amps] How high can I go with this amp? (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Sat, 10 Oct 2009 11:01:22 -0400
Gents: and To do it right, go here: http://tonnesoftware.com/piel.html The program available there will hold your hand in designing a PI or PI-EL network. You will see all of the volts across and amp
/archives//html/Amps/2009-10/msg00165.html (7,896 bytes)

151. Re: [Amps] Checking Plate Choke resonance (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Tue, 13 Oct 2009 12:42:25 -0400
Gents: About this RF choke resonance thng . . . Isn't there some rule about the choke being open-circuited (no connections to it) and/or shorted (piece of wire across it) when you check for resonance
/archives//html/Amps/2009-10/msg00196.html (8,835 bytes)

152. Re: [Amps] Repeats (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Sat, 7 Nov 2009 11:02:12 -0500
Bill: I use OE and find appropriate editing simple! Copy a sentence, move it to the top, add text and signature, delete all below then send. - JimT _______________________________________________ Amp
/archives//html/Amps/2009-11/msg00103.html (7,440 bytes)

153. Re: [Amps] QRO Parts (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Tue, 24 Nov 2009 11:31:19 -0500
"Now the question i asked was where to get information regarding the plate impedance at 3.8KV. Im sure there must be a chart/graph to figure this out. Mike KC7NOA" For a stand-alone PI and PI-EL netw
/archives//html/Amps/2009-11/msg00261.html (8,255 bytes)

154. Re: [Amps] Dummy Loads & Wattmeters (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Wed, 2 Dec 2009 17:08:03 -0500
Not exactly on-topic but if you are doing output harmonic measurements remember that Carborundums generate a little bit of harmonic content themselves. They are a teeny bit nonlinear. - Jim W4ENE ___
/archives//html/Amps/2009-12/msg00047.html (8,506 bytes)

155. Re: [Amps] water conductivity and hose length (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Sun, 20 Dec 2009 22:15:00 -0500
The water filter does not need to be "in series with" the entire flow path. You can take just a small amount of the water via a detour and run that through a small filter. The object is to eventually
/archives//html/Amps/2009-12/msg00515.html (8,746 bytes)

156. Re: [Amps] GU 74 operating parameters (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Wed, 6 Jan 2010 14:09:47 -0500
Karl-Arne wrote in part: Current in the PI and the L inductors will be similar unless network Q is high. Get PI-L designer here: http://tonnesoftware.com/piel.html Not only does design but also analy
/archives//html/Amps/2010-01/msg00031.html (8,075 bytes)

157. Re: [Amps] 120 cycle hum from Henry 2K-4 (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Thu, 18 Feb 2010 20:34:53 -0500
If supply voltage is higher than normal you may have some shorted turns on the filter choke. If supply voltage is lower than normal you may have reduced value of filter capacitor. If ripple frequency
/archives//html/Amps/2010-02/msg00536.html (8,228 bytes)

158. Re: [Amps] Soft start, how to determine... if needed. (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Sat, 6 Mar 2010 10:14:16 -0500
It's called an oscilloscope :-) - JimT W4ENE _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2010-03/msg00110.html (7,416 bytes)

159. Re: [Amps] ripple in B+ supply (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Wed, 24 Mar 2010 09:59:08 -0400
About ripple in a power supply: ==That is a true statement. ==That is also a true statement. ==And that is a true statement. ==Absolutely wrong! In that writer's mind, I would suppose, but not in gen
/archives//html/Amps/2010-03/msg00552.html (9,616 bytes)

160. Re: [Amps] ripple in B+ supply (score: 1)
Author: "Jim Tonne" <tonne@comcast.net>
Date: Wed, 24 Mar 2010 10:06:21 -0400
Dominant harmonic is fourth, not second. "Fundamental" of the ripple is second. Sorry about that. Just looked at an LTspice model of a guy's supply and (choke-input, one L and one C) ripple was very
/archives//html/Amps/2010-03/msg00553.html (7,911 bytes)

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