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121. [Amps] 10 Meters (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Wed, 13 Mar 2002 07:38:24 -0000; --Original Message-- From: Steve Katz <stevek@jmr.com> To: 'n8de@thepoint.net' <n8de@thepoint.net> Cc: 'Marcelo ' <marcelo@alternex.com.br>; amps@contesting.com <amps@contesting.com> To: <amps@contes; /archives//html/Amps/2002-03/msg00274.html (8,762 bytes)
122. [Amps] Antenna vs. amp (was: al-1200 question) (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Wed, 13 Mar 2002 10:05:56 -0000; I'm very sorry if I've misunderstood and/or misrepresented you. As a final clarification (and I'll shut up on the subject after this) - if I have two antennas with different directional characteristi; /archives//html/Amps/2002-03/msg00276.html (9,418 bytes)
123. [Amps] 10 Meters (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Thu, 14 Mar 2002 12:36:28 -0000; Not to mention the dreaded 'ygrec'......... Apologies to any French speakers on the list, but in adjudicating UK VHF contests, the percentage error rate was much higher for contacts with French stati; /archives//html/Amps/2002-03/msg00288.html (8,917 bytes)
124. [Amps] Re: [Amps} 10 Meters (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Thu, 14 Mar 2002 17:44:17 -0000; A possible reason is that worst case voltage in a 48V system is higher than 50V which, I think, has implications with safety directives, at least in Europe. With the 42V option, you have to get to th; /archives//html/Amps/2002-03/msg00318.html (6,832 bytes)
125. [Amps] Microwave oven transformer, mobile supply (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Sun, 17 Mar 2002 09:09:28 -0000; If you are going to use a capacitor input PSU, it's worth looking at predicted peak and rms currents - a good tool is the simulation prog. at www.duncanamps.com Steve; /archives//html/Amps/2002-03/msg00380.html (7,219 bytes)
126. [Amps] Henry 2k p.s. questions (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Mon, 18 Mar 2002 16:22:28 -0000; a You can do a forward check that way, but it's reverse that's more suspect where primary fuses are blowing. Try it step by step, perhaps. Unhook the hv secondary from the rectifiers. If that's ok ad; /archives//html/Amps/2002-03/msg00398.html (7,764 bytes)
127. [Amps] pcb manufacture (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Tue, 19 Mar 2002 14:26:09 -0000; I think it was Carl who asked about info. from Billy Ward. Coincidentally, I was looking for it as well at the same time. All I found was one old message talking about etching with HCl and H2O2 in eq; /archives//html/Amps/2002-03/msg00416.html (6,537 bytes)
128. [Amps] Useful Parts, conclusion. (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Tue, 19 Mar 2002 19:11:30 -0000; --Original Message-- From: Jim Bryant <kc5vdj@yahoo.com> To: g3jvc@jcleeve.idps.co.uk <g3jvc@jcleeve.idps.co.uk> Cc: amps@contesting.com <amps@contesting.com> To: <amps@contesting.com> Date: 19 March; /archives//html/Amps/2002-03/msg00428.html (7,219 bytes)
129. [Amps] Re: HV Voltmeters (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Sun, 24 Mar 2002 07:27:58 -0000; weak-looking affair - about 20 turns of roughly .5mm dia. wire. (not sure of the material - same sort of colour as galvanised steel?). However, there's no indication of what the FSD is without the sh; /archives//html/Amps/2002-03/msg00552.html (6,820 bytes)
130. [Amps] Amps that are GI7B candidates ? (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Sun, 24 Mar 2002 17:25:35 -0000; --Original Message-- From: wb4mnf <wb4mnf@atl.org> To: Douglas R Snowden <Douglas.R.Snowden@noaa.gov> Cc: amps@contesting.com <amps@contesting.com> To: <amps@contesting.com> Date: 24 March 2002 15:06; /archives//html/Amps/2002-03/msg00554.html (8,156 bytes)
131. [Amps] HV Voltmeters (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Mon, 25 Mar 2002 14:28:57 +0000; Philips (now known as BC Components) have VR25 and VR37 families of resistors, rated at .25W, 1600V dc and .5W, 3500V dc respectively. Values in the Farnell (links with Newark in US) catalogue I have; /archives//html/Amps/2002-03/msg00570.html (8,737 bytes)
132. [Amps] SB-220 WARC bands (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Mon, 25 Mar 2002 15:34:45 +0000; If the feedline and meter have the same Zo and the sampling system has sufficient directivity, the meter will show the forward and reflected power accurately, even if the termination is not Zo. The d; /archives//html/Amps/2002-03/msg00573.html (8,800 bytes)
133. [Amps] SB-220 WARC bands (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Tue, 26 Mar 2002 09:18:16 -0000; ? Steve -- Does it say this in the Bird® 43 manual ? Sorry, but I've no idea. Steve; /archives//html/Amps/2002-03/msg00587.html (8,384 bytes)
134. [Amps] Re: [Amps] Re: [Amps] Re: [Amps] Bird® 43 Manual (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Thu, 28 Mar 2002 15:16:44 +0000; If there's no termination, there's no power - for power, you have to have a dissipating resistance. It can help to think of it as two different things: Whatever is on the far end of the transmission; /archives//html/Amps/2002-03/msg00650.html (11,146 bytes)
135. [Amps] Re: [Amps] Re: [Amps] Re: [Amps] Bird® 43 Manual (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Thu, 28 Mar 2002 16:14:22 +0000; Yes, but the Bird isn't measuring *power*. As Ian said, it's detecting 70.71Vrms forwards and backwards. The meter scale assumes the voltage is going into a 50R resistor. When it isn't, all the meter; /archives//html/Amps/2002-03/msg00655.html (10,316 bytes)
136. [AMPS] 1: 150W Transformer (score: 1): Author: g8gsq@qsl.net (g8gsq@qsl.net); Date: 1 Feb 2002 08:35:30 -0000; Sorry if my replies are late for a while, spamcop has the UK offline again. To: <amps@contesting.com> -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative; /archives//html/Amps/2002-02/msg00002.html (7,835 bytes)
137. [AMPS] mini Teflon coax, the white stuff (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Tue, 12 Feb 2002 16:22:29 -0000; --Original Message-- From: Steve Katz <stevek@jmr.com> To: 'skipp isaham' <nospam4me@juno.com>; amps@contesting.com <amps@contesting.com> To: <amps@contesting.com> Date: 12 February 2002 16:03 Subjec; /archives//html/Amps/2002-02/msg00109.html (8,425 bytes)
138. [AMPS] mini Teflon coax, the white stuff (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Wed, 13 Feb 2002 17:33:19 -0000; --Original Message-- From: Steve Katz <stevek@jmr.com> To: 'Steve Thompson' <g8gsq@qsl.net>; amps@contesting.com <amps@contesting.com> To: <amps@contesting.com> Date: 12 February 2002 16:33 Subject:; /archives//html/Amps/2002-02/msg00129.html (8,667 bytes)
139. [AMPS] gs35 internals (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Sun, 17 Feb 2002 17:34:04 -0000; If anyone is curious, I've posted a couple of pictures of the insides of a dud tube (dud when it was given to me!). There's no links from the homepage. www.qsl.net/g8gsq/gs35a.jpg www.qsl.net/g8gsq/g; /archives//html/Amps/2002-02/msg00177.html (7,170 bytes)
140. [AMPS] gs35 internals (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Mon, 18 Feb 2002 10:24:16 -0000; homepage. to On the face of it, it's simple but effective. All of the marks with the brown circumference are on the cathode surface. There's heating discolouration on the grid above all but the small; /archives//html/Amps/2002-02/msg00181.html (8,727 bytes)

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