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Total 480 documents matching your query.

281. Re: [Amps] HV Diodes (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Fri, 10 Oct 2014 20:00:57 +0800
Why not go all the way and use the 10A10 diodes? 10 Amps at 1kV, in what looks to be the same size as the 6A10. 73, Alek VK6APK 1N5408 diodes, mounted on perf-board, works fine. REPLY: 1N5408's are O
/archives//html/Amps/2014-10/msg00033.html (8,871 bytes)

282. Re: [Amps] HV Diodes (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Sat, 11 Oct 2014 06:19:14 +0800
G'day Bill. I haven't tried them and I guess I never will, as I have a couple of boxes of 500 on a reel, of 6A10s to get through first In actual fact, on ebay, the 10A10s appear, in many cases, to be
/archives//html/Amps/2014-10/msg00039.html (9,394 bytes)

283. Re: [Amps] Source for replacement PS caps (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Sat, 11 Oct 2014 06:25:58 +0800
K4POZ sells 390uF/450V/105°C capacitors at $2.75 each plus shipping. They are not screw terminal jobs but that shouldn't matter. See http://swap.qth.com/c_amphf.php and scroll down the ads to get to
/archives//html/Amps/2014-10/msg00040.html (8,516 bytes)

284. Re: [Amps] Source for replacement PS caps (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Sat, 11 Oct 2014 07:10:34 +0800
You could consider soldered wires from capacitors to the board and neutral cure "Roof and Gutter" silicone to hold things in place. That's what I did with my AL-1500. 73, Alek. VK6APK Been looking ar
/archives//html/Amps/2014-10/msg00042.html (11,153 bytes)

285. Re: [Amps] SOURCE FOR 3CX800'S (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Thu, 16 Oct 2014 09:28:52 +0800
Or even http://www.rfconcepts.com/PRODUCTS/tubes?range=11%2C18%2C18 alek, VK6APK -- http://www.qrz.com/db/vk6apk http://www.qrz.com/db/vk6ap Family Businesses: Petkovic Air& Gas. petkovicag@bigpond.c
/archives//html/Amps/2014-10/msg00066.html (8,214 bytes)

286. Re: [Amps] AL-1200 Tuning Capacitor Range (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Sat, 18 Oct 2014 16:25:14 +0800
G'day Kim. Dunno if the AL-1200 is the same as the AL-1500 where the markings on the front panel indicate that the plate cap should be tuning at the spot you mentioned. Yeah, I know. Different tube b
/archives//html/Amps/2014-10/msg00156.html (9,222 bytes)

287. Re: [Amps] Dentron Amp (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Mon, 20 Oct 2014 06:08:08 +0800
I was able to fit the Ameritron plate choke in my Clipperton L. Dunno if it will go into the MLA but it could be worth measuring up. 73, Alek VK6APK The Dentron amp will work on 17m and 12m (not perm
/archives//html/Amps/2014-10/msg00203.html (7,503 bytes)

288. Re: [Amps] Dentron Amp (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Mon, 20 Oct 2014 08:43:55 +0800
Ha. Lovely. I thought you would have done it. Thanks and cheers from the left coast, downunder. Alek. VK6APK On 20/10/2014 8:25 AM, Carl wrote: The MLA is more compact than the L but the Ameritron wi
/archives//html/Amps/2014-10/msg00205.html (10,141 bytes)

289. Re: [Amps] Holding a vacuum (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Sat, 29 Nov 2014 07:31:11 +0800
Yes. That's correct. I use a cheap plastic tub with a filament transformer and small blower from an old microwave oven mounted inside. The tub is inverted and the base of the tub has the tube socket
/archives//html/Amps/2014-11/msg00069.html (13,420 bytes)

290. Re: [Amps] Alpha 76 "SNAP" noise (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Wed, 24 Dec 2014 10:10:06 +0800
BANG! Yep. They were talking about the electrolytics. Change 'em, before you have to change your underwear. 73, Alek. VK6APK On 24/12/2014 7:59 AM, John G3UUT wrote: Sorry folks, are we talking about
/archives//html/Amps/2014-12/msg00086.html (9,912 bytes)

291. Re: [Amps] Alpha Input SWR (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Sat, 10 Jan 2015 11:51:32 +0800
To quote Odetta Holmes (Hole in the bucket), "Well fix it dear Henry, dear Henry, dear Henry Well fix it dear Henry. Fix it." 73, Alek. VK6APK What is bad about SWR <2? 73 Peter --Original Message--
/archives//html/Amps/2015-01/msg00016.html (12,057 bytes)

292. Re: [Amps] The genius of ham radio (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Mon, 12 Jan 2015 16:10:48 +0800
If I'm not mistaken, Charly's initial point was that everybody is in the hobby for different reasons. Some are just appliance operators, with little knowledge on how things work and they are happy wi
/archives//html/Amps/2015-01/msg00036.html (10,101 bytes)

293. Re: [Amps] Amps with high swr question (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Thu, 15 Jan 2015 20:45:38 +0800
The LDG tuners are L type rather than pi type which makes them less than optimum for that task. I think that 's why they discontinued their amp tuner. I bought the amp chip and the AT-100 tuner from
/archives//html/Amps/2015-01/msg00130.html (11,141 bytes)

294. Re: [Amps] Help with QRO ham's web page (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Thu, 22 Jan 2015 05:40:44 +0800
http://somis.org/ 73, Alek. VK6APK On 21/01/2015 12:11 PM, Ed Hatcher wrote: I know I had it book marked, but I can't find it. Seems like he was out of California. He had breakdown testers and built
/archives//html/Amps/2015-01/msg00198.html (7,846 bytes)

295. Re: [Amps] really outrageous amps (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Fri, 23 Jan 2015 11:34:05 +0800
Shane (Toll Free) probably has. Alek VK6APK I know I had it book marked, but I can't find it. Seems like he was out of California. He had breakdown testers and built really outrageous amps and had de
/archives//html/Amps/2015-01/msg00205.html (9,407 bytes)

296. Re: [Amps] 5 Minutes for Ameritron 811H to warm up? (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Fri, 23 Jan 2015 11:37:32 +0800
The slow start relay circuit is kaput. Alek VK6APK Well, a local Ham has a brother who likes to buy, try, & sell Ham gear and he just happened to have an Ameritron 811H in need of a new home. His ask
/archives//html/Amps/2015-01/msg00207.html (8,095 bytes)

297. Re: [Amps] 5 Minutes for Ameritron 811H to warm up? (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Fri, 23 Jan 2015 13:37:00 +0800
Yeah. Well that is strange. Blowed if I know what he means then. Thanks Alek. VK6APK That is why I wondered what he meant when he said 'warms up'. 73 Tom W7WHY Alek VK6APK Well, a local Ham has a bro
/archives//html/Amps/2015-01/msg00210.html (9,452 bytes)

298. Re: [Amps] 5 Minutes for Ameritron 811H to warm up? (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Fri, 23 Jan 2015 20:09:40 +0800
You said it in one Jim. If you buy a AL811, you deserve what you get. A guy local to me had two of them. One with three tubes and one with four. They were forever breaking down and he usually brought
/archives//html/Amps/2015-01/msg00212.html (8,961 bytes)

299. Re: [Amps] 5 Minutes for Ameritron 811H to warm up? (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Sat, 24 Jan 2015 05:34:05 +0800
From memory: The plastic encapsulated output relay on the 3 holer, totally fused on 4 occasions. The little diode in the bias/metering circuit, 3 times. The filament voltage is 10% high on both model
/archives//html/Amps/2015-01/msg00218.html (12,097 bytes)

300. Re: [Amps] amp reading (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Sat, 24 Jan 2015 15:26:44 +0800
I use 5 Watt wire wound resistors of 0.1 and 0.22 Ohms and series/parallel a heap of them up to get the desired resistance/power dissipation level. You gotta overkill on the power rating because you
/archives//html/Amps/2015-01/msg00231.html (8,759 bytes)

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