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301. Re: [Amps] MRF141G (score: 1)
Author: Steve Thompson <g8gsq@eltac.co.uk>
Date: Mon, 11 Jun 2007 07:39:10 +0100
Simple tests that should spot a dead device: Using a DVM on high resistance range (1-2M is ok) gate to source and gate to drain should show 'off scale' resistance both ways. DVM on diode setting, sho
/archives//html/Amps/2007-06/msg00066.html (7,188 bytes)

302. Re: [Amps] MRF141G - error (score: 1)
Author: Steve Thompson <g8gsq@eltac.co.uk>
Date: Mon, 11 Jun 2007 14:55:30 +0100
That should read short gate to source. Sorry Steve _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2007-06/msg00068.html (6,101 bytes)

303. Re: [Amps] resistors (score: 1)
Author: Steve Thompson <g8gsq@eltac.co.uk>
Date: Wed, 20 Jun 2007 07:37:48 +0100
I've used several different brands and I don't see any significant difference between 'same spec' components from any of them, in either rf characteristics or dissipation and overload capability. Any
/archives//html/Amps/2007-06/msg00095.html (6,651 bytes)

304. Re: [Amps] suppliers (score: 1)
Author: Steve Thompson <g8gsq@eltac.co.uk>
Date: Fri, 22 Jun 2007 21:43:12 +0100
Does Newark offer what you want? Steve _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2007-06/msg00114.html (7,232 bytes)

305. Re: [Amps] Resistor Types (score: 1)
Author: Steve Thompson <g8gsq@eltac.co.uk>
Date: Fri, 22 Jun 2007 21:47:10 +0100
Interesting comments, Manfred - but what types of resistor are failing on you? Steve _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/
/archives//html/Amps/2007-06/msg00115.html (7,450 bytes)

306. Re: [Amps] Need help locating an article (score: 1)
Author: Steve Thompson <g8gsq@eltac.co.uk>
Date: Fri, 06 Jul 2007 08:33:52 +0100
I think there was such an article in VHF Communications some years ago. Steve _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman
/archives//html/Amps/2007-07/msg00042.html (7,384 bytes)

307. Re: [Amps] GI7b and GI7bt FS (score: 1)
Author: Steve Thompson <g8gsq@eltac.co.uk>
Date: Mon, 09 Jul 2007 11:09:31 +0100
He quoted you a price. You offered less money. He said no deal. Which part of this leads you to imply that he is untrustworthy? Steve _______________________________________________ Amps mailing list
/archives//html/Amps/2007-07/msg00106.html (7,308 bytes)

308. Re: [Amps] GI7b and GI7bt FS (score: 1)
Author: Steve Thompson <g8gsq@eltac.co.uk>
Date: Mon, 09 Jul 2007 12:04:02 +0100
Yes, you did. Being rude does not make someone dishonest. Maybe it indicates cultural differences, maybe language problems, maybe that the guy has a short temper with people who try to bargain with h
/archives//html/Amps/2007-07/msg00108.html (7,892 bytes)

309. Re: [Amps] Re 200w fast relay (score: 1)
Author: Steve Thompson <g8gsq@eltac.co.uk>
Date: Mon, 09 Jul 2007 19:13:45 +0100
Matsushita is also Panasonic in some areas. As I recall, they had a technology tie-up on relays with Siemens many years ago, then Siemens floated off their relay division as Aromat. Steve ___________
/archives//html/Amps/2007-07/msg00122.html (7,372 bytes)

310. Re: [Amps] Fwd: Weighing In On Solder Water Wash Flux (score: 1)
Author: Steve Thompson <g8gsq@eltac.co.uk>
Date: Wed, 11 Jul 2007 22:44:28 +0100
For at least 10 years all the solder wire I've bought for assembly work has had 'no clean' flux that leaves a tiny transparent residue that can remain in place - maybe not for high uW or serious QRO,
/archives//html/Amps/2007-07/msg00198.html (7,388 bytes)

311. Re: [Amps] suppressors (score: 1)
Author: Steve Thompson <g8gsq@eltac.co.uk>
Date: Thu, 12 Jul 2007 12:01:34 +0100
You probably won't see much difference on 10m - the suppressor should be adding 1-3 ohms in series between the plate and tune C. The circuit impedance is typ. 2-4k, so the power loss is a few tenths
/archives//html/Amps/2007-07/msg00202.html (7,404 bytes)

312. Re: [Amps] suppressors (score: 1)
Author: Steve Thompson <g8gsq@eltac.co.uk>
Date: Fri, 13 Jul 2007 19:34:44 +0100
The only problem I have with Wes' data (and particularly the graphs) is that it concentrates on the parallel equivalent values. I think these are a distraction - the value that matters is what Wes ca
/archives//html/Amps/2007-07/msg00214.html (7,726 bytes)

313. Re: [Amps] Grid Dipping the Pi network in a new amp? (score: 1)
Author: Steve Thompson <g8gsq@eltac.co.uk>
Date: Wed, 18 Jul 2007 08:05:48 +0100
Is that necessary here? If you hang a resistor on the anode to represent the wanted load resistance, then the pi network transforms that so that you see 50 ohms looking into the antenna socket. I thi
/archives//html/Amps/2007-07/msg00318.html (9,027 bytes)

314. Re: [Amps] higher v.?? (score: 1)
Author: Steve Thompson <g8gsq@eltac.co.uk>
Date: Tue, 24 Jul 2007 22:28:35 +0100
To put the energy saving in context - you use a 20W low energy bulb instead of 100W incandescent for 12 hours and save about 1kWh. The equivalent is about 1/9th of a litre of gasoline (1/30th US gall
/archives//html/Amps/2007-07/msg00411.html (7,235 bytes)

315. Re: [Amps] higher v.?? (score: 1)
Author: Steve Thompson <g8gsq@eltac.co.uk>
Date: Wed, 25 Jul 2007 07:58:25 +0100
Do they fade in the same way that 'regular' fluorescent tubes do? I had to dismantle a fixture to replace a dead tube at work, so I thought I'd do all four while I was there. I was staggered by the e
/archives//html/Amps/2007-07/msg00426.html (9,354 bytes)

316. Re: [Amps] Tokyo HL-1.5KFX Yaesu pinout (score: 1)
Author: Steve Thompson <g8gsq@eltac.co.uk>
Date: Mon, 30 Jul 2007 20:58:06 +0100
Quoting VK6APK from a previous thread: "We all know what you are going through. I think the numbering is the way it is because originally the DIN plug was just 3 pins numbered 1-2-3 in a row as you
/archives//html/Amps/2007-07/msg00525.html (8,451 bytes)

317. [Amps] Amps for sale (score: 1)
Author: Steve Thompson <g8gsq@eltac.co.uk>
Date: Thu, 09 Aug 2007 19:27:52 +0100
I've no idea whether these are reasonable prices, and don't know the company but I bumped into the page: http://www.bptec.com/used.html Steve _______________________________________________ Amps mail
/archives//html/Amps/2007-08/msg00036.html (6,159 bytes)

318. Re: [Amps] Amps for sale (score: 1)
Author: Steve Thompson <g8gsq@eltac.co.uk>
Date: Thu, 09 Aug 2007 22:28:56 +0100
I guess they are just trying to make 20%. 2KD prices sound good at $2/&pound;, if it wasn't for shipping costs.... Steve _______________________________________________ Amps mailing list Amps@contest
/archives//html/Amps/2007-08/msg00038.html (6,683 bytes)

319. Re: [Amps] LK 500 ZA heat (score: 1)
Author: Steve Thompson <g8gsq@eltac.co.uk>
Date: Mon, 13 Aug 2007 22:18:01 +0100
It might be useful - but not necessarily because of any effect on the amount of airflow. Air is like water, and follows the easiest route, This means it goes past and round objects, often leaving a l
/archives//html/Amps/2007-08/msg00056.html (7,938 bytes)

320. Re: [Amps] wanted suitable blower for 8877 tube (score: 1)
Author: Steve Thompson <g8gsq@eltac.co.uk>
Date: Sun, 19 Aug 2007 07:44:23 +0100
A Rotron Spinnaker 24V blower will just cool a 8877 at continuous full tilt, and it's easy to wind the speed up and down if you want to control noise levels. In the UK these are an attractive price c
/archives//html/Amps/2007-08/msg00120.html (8,165 bytes)

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