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Total 573 documents matching your query.

261. [Amps] SB-220 Filament Transformer Needed (score: 1)
Author: James Colville <jimw7ry@gmail.com>
Date: Sat, 12 Aug 2017 19:52:58 -0500
I have a friend that needs a filament transformer for an SB220. Yes, I know all the aftermarket sources.. Thanks! 73 Jim W7RY _______________________________________________ Amps mailing list Amps@co
/archives//html/Amps/2017-08/msg00015.html (6,415 bytes)

262. Re: [Amps] peak voltage rating for load cap (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Sun, 20 Aug 2017 12:23:55 -0500
Take a few plates out of a lager value cap. That way it increases the voltage. 73 Jim W7RY <Hello what is the rule of thumb for conservatively estimating the <required ratings for a load capacitor wh
/archives//html/Amps/2017-08/msg00035.html (14,430 bytes)

263. Re: [Amps] TL922 problem (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Sun, 3 Sep 2017 17:35:45 -0500
Sounds like the classic RF in the shack. 30 feet (of height) is not very far away from your equipment. Un-plug all other equipment from the radio other than the amplifier and the microphone. Try a di
/archives//html/Amps/2017-09/msg00005.html (8,752 bytes)

264. Re: [Amps] Apparent Arcing (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Mon, 4 Sep 2017 20:09:11 -0500
Roger... Are you using solid state relays for the step start and the primary of the transformer? 73 Jim W7RY I recently 'completed' a new amplifier. Everything seemed fine and I was quite happy. But
/archives//html/Amps/2017-09/msg00019.html (9,911 bytes)

265. Re: [Amps] Antenna Works (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Wed, 6 Sep 2017 17:05:54 -0500
Do you have a amateur call sign? Can you post some pictures somewhere? A picture is worth a thousand words.. 73 Jim W7RY I have bought a used homebrew amp and I am updating and changing things and it
/archives//html/Amps/2017-09/msg00032.html (8,209 bytes)

266. Re: [Amps] Antenna Works (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Wed, 6 Sep 2017 17:33:55 -0500
Mike... http://www.antennaworks.com/ There is a link at the bottom of the page for a manual for their 2 meter amplifier. There is a picture of the meter on the web page. 73 Jim W7RY From: Michael J T
/archives//html/Amps/2017-09/msg00034.html (8,841 bytes)

267. Re: [Amps] SB220 step start blows fuses (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Mon, 18 Sep 2017 17:44:52 -0500
WOOOO HOO!!! Hard telling what took out all of the semiconductors. Could have been hooked up wrong at one time too. Thanks for letting us know and glad you got it all working! 73 Jim W7RY Just to clo
/archives//html/Amps/2017-09/msg00060.html (10,526 bytes)

268. Re: [Amps] FW: Status of Alpha (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Tue, 3 Oct 2017 16:18:10 -0500
The link below yours is https:// BIG difference between http:// and https:// 73 Jim W7RY This link works perfectly. What's the problem? http://www.alpharfsystems.com/ Doug --Original Message-- From:
/archives//html/Amps/2017-10/msg00029.html (9,764 bytes)

269. Re: [Amps] sideways TL-922 (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Thu, 5 Oct 2017 17:54:45 -0500
Upside down. Tube specs show vertical, base up or base down. 73 Jim W7RY What is the proper way to check my TL-922 with its under-side cover off? Having already destroyed a 4-400a running it on its'
/archives//html/Amps/2017-10/msg00064.html (7,134 bytes)

270. Re: [Amps] SB200 on 30 m (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Fri, 6 Oct 2017 19:08:34 -0500
The FCC rules are very clear. 200 watts PEP output from the transmitter. Doesn't matter if you have a -20db gain antenna (wet noodle) or a 10Dbd Yagi. 200 watts output. Period. 73 Jim W7RY A 30 meter
/archives//html/Amps/2017-10/msg00098.html (12,385 bytes)

271. Re: [Amps] Band Switch for QRO HF-2000 (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Mon, 16 Oct 2017 21:32:26 -0500
I think these are them... http://www.multi-tech-industries.com/rswitches.html 73 Jim W7RY Does anyone know who makes the band-switches used in the HF-2000? Thanks/73, Jim, K8OZ ______________________
/archives//html/Amps/2017-10/msg00128.html (7,373 bytes)

272. Re: [Amps] K0HM Electronics Repair and Alpha 9500 repair (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Mon, 23 Oct 2017 07:29:41 -0500
Where did you measure the filament voltage? 73 Jim W7RY Hi Larry, Sorry for the delay in posting this. Ive had my 9500 serial number 400 since 2011 and it has been pretty much flawless. I had a 10m t
/archives//html/Amps/2017-10/msg00145.html (11,843 bytes)

273. Re: [Amps] Bird Slug Modification? (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Thu, 26 Oct 2017 12:29:33 -0500
Lots of stuff on the Repeater Builder site about Bird Slugs. Just search for Repeater builder bird slugs. 73 Jim W7RY After receiving some good tips about the coupling of a 5W slug being too tight to
/archives//html/Amps/2017-10/msg00169.html (9,470 bytes)

274. [Amps] Carl KM1H (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Mon, 30 Oct 2017 21:21:23 -0500
Carl Do you still need into on the Sigma XRD3000 amplifier transformer? I have a schematic that would probably help. let me know 73 Jim W7RY _______________________________________________ Amps maili
/archives//html/Amps/2017-10/msg00172.html (6,164 bytes)

275. Re: [Amps] Pole pigs removed from oil ?? (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Sat, 4 Nov 2017 10:55:41 -0500
Test kit.... http://www.andax.com/clor-n-oil-kit--50-ppm-details.aspx 73 Jim W7RY Agreed, today I would never dump the oil. Back then, with all the dumping without regard to the impacts we're lucky w
/archives//html/Amps/2017-11/msg00016.html (12,497 bytes)

276. Re: [Amps] Pole pigs removed from oil ?? (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Sat, 4 Nov 2017 10:59:05 -0500
Here is a much cheaper one. https://www.jointingtech.co.uk/Clor-n-Oil-50ppm-PCB-Test-Kit 73 Jim W7RY Test kit.... http://www.andax.com/clor-n-oil-kit--50-ppm-details.aspx 73 Jim W7RY --Original Messa
/archives//html/Amps/2017-11/msg00017.html (12,962 bytes)

277. [Amps] Ten Tec Titan Band Switch (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Sat, 4 Nov 2017 13:19:27 -0500
I need the rear wafer for a Ten-Tec Titan band switch. Any sources besides going to no reply Alpha or whatever they are called today? How about multitec industries. I dont see this style of switch on
/archives//html/Amps/2017-11/msg00021.html (6,399 bytes)

278. [Amps] Ten Tec Titan Band Switch (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Mon, 6 Nov 2017 20:44:14 -0600
I need the rear wafer for a Ten-Tec Titan band switch. Any sources besides going to no reply Alpha or whatever they are called today? How about multitec industries. I dont see this style of switch on
/archives//html/Amps/2017-11/msg00036.html (6,736 bytes)

279. Re: [Amps] SB220 plate meter question (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Tue, 7 Nov 2017 06:50:45 -0600
With the amplifier un-plugged.... Hook a small variable power supply across R1. Adjust it for mid scale. See if the current slowly goes down. Then you can troubleshoot it without high voltage. Observ
/archives//html/Amps/2017-11/msg00041.html (9,204 bytes)

280. Re: [Amps] Henry 2K-3 amp restore (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Sun, 12 Nov 2017 23:23:08 -0600
I would look for a ban connection on the meter switch for most of your issues. Could be bad diodes in the "wattmeter". Never had to replace a diode in one of a Henry. It's probably more like a relati
/archives//html/Amps/2017-11/msg00134.html (9,669 bytes)

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