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301. Re: [Amps] MFJ tuner and SB-200 for input matching (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sun, 25 Nov 2007 13:15:36 -0500
Do a Google search, there are any number of threads and URL's covering that issue along with corrections. Way too much to cover here. Carl KM1H _______________________________________________ Amps ma
/archives//html/Amps/2007-11/msg00361.html (9,122 bytes)

302. Re: [Amps] SB-230 converted to 572b's (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Mon, 26 Nov 2007 08:41:54 -0500
The AC may be leakage from a ground loop, miswired power cord or wall outlet, AC line bypass cap, etc. When the amp is keyed the tubes are conducting in idle state, 90-100 ma is normal for 572B's. It
/archives//html/Amps/2007-11/msg00373.html (7,530 bytes)

303. Re: [Amps] Wanted -- open frame relays (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Wed, 28 Nov 2007 14:13:34 -0500
I buy mine from All Electronics, usually 12-15A P&B 24V. They have socket/solder bases and dust covers. Ive used for years for phased verticals and stacked yagis. Carl KM1H __________________________
/archives//html/Amps/2007-11/msg00387.html (8,342 bytes)

304. Re: [Amps] Alpha 78 on 110 AC (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Thu, 29 Nov 2007 12:33:28 -0500
It will work to some degree depending on the sensitivity of your breakers. Once you establish the kick off threshold simply stay below that point. I can run around 1200W key down for at least 15 seco
/archives//html/Amps/2007-11/msg00396.html (7,497 bytes)

305. Re: [Amps] Re amperex AX7T69RB trioda (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Mon, 3 Dec 2007 19:57:18 -0500
It sounds like an industrial tube for RF heating. It is then strictly a Class C tube. Carl KM1H _______________________________________________ Amps mailing list Amps@contesting.com http://lists.cont
/archives//html/Amps/2007-12/msg00013.html (8,899 bytes)

306. Re: [Amps] Are there more Tranformer suppliers out there (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Fri, 7 Dec 2007 14:54:12 -0500
Id call Ameritron and see who they are using as they had been buying from Dahl exclusively. I would think that they had plenty of advance notice. Someone is sure to buy all the documentation but it w
/archives//html/Amps/2007-12/msg00037.html (8,989 bytes)

307. Re: [Amps] Peter W Dahl Co (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Fri, 7 Dec 2007 14:56:21 -0500
The "auction" prices would likely be more for certain items. All the CB builders will be camping out in their tents. Carl KM1H _______________________________________________ Amps mailing list Amps@c
/archives//html/Amps/2007-12/msg00038.html (8,637 bytes)

308. Re: [Amps] Are there more Tranformer suppliers out there (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Fri, 7 Dec 2007 17:25:20 -0500
Anybody want to bet that Martin F Jue will buy it for pennies on the dollar? Carl KM1H _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.co
/archives//html/Amps/2007-12/msg00044.html (11,117 bytes)

309. Re: [Amps] AL811H on 10 m? (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Fri, 7 Dec 2007 19:26:19 -0500
If its the same as other Ameritrons then cut the green wire on the switch going to ground. Carl KM1H _______________________________________________ Amps mailing list Amps@contesting.com http://lists
/archives//html/Amps/2007-12/msg00050.html (7,702 bytes)

310. Re: [Amps] LK-500ZB (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sat, 8 Dec 2007 08:14:36 -0500
At first glance it sounds like a parasitic. Unwind one end of both suppressor coils and measure the resistors. Replace if more than 15% out of tolerance. The ZB is over 20 years old so a little PM is
/archives//html/Amps/2007-12/msg00066.html (8,646 bytes)

311. Re: [Amps] Tranformer Suppliers (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sat, 8 Dec 2007 08:30:57 -0500
There are guys rewinding, as a business, transformers in their basement up to the .5KVA level or so. I rewound the secondary of an AL-80 xfmr several years ago with reasonable success. That meaning I
/archives//html/Amps/2007-12/msg00068.html (10,662 bytes)

312. Re: [Amps] Nicotine from last owner :-( (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sat, 8 Dec 2007 08:38:51 -0500
Absolutely OK to do that. You may also want to wash the impeller blades of the blower and both sides of the top cover. The dishwasher is a good spot for the tubes. For the rest I use a foaming bathro
/archives//html/Amps/2007-12/msg00069.html (9,975 bytes)

313. [Amps] How to ID a swinging choke? (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sat, 8 Dec 2007 09:13:25 -0500
Is there a simple bench test or an eyeball way to tell the difference between a fixed and swinging choke? Something about an air gap if I remember but not all my chokes are open frames. Carl KM1H ___
/archives//html/Amps/2007-12/msg00071.html (6,899 bytes)

314. Re: [Amps] MFJ and Dahl (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sat, 8 Dec 2007 20:42:07 -0500
Profit and garbage is his business plan. Selling to idiot hams is one thing, selling to industrial customers is something altogether different. Ameritron has steadily gone down hill since More Friggi
/archives//html/Amps/2007-12/msg00086.html (7,671 bytes)

315. Re: [Amps] MFJ and Dahl (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sat, 8 Dec 2007 21:24:25 -0500
The AL-84 was entry level at a time sweep tubes were cheap, import TX tubes werent available yet and domestice were expensive. They were made to compete with almost identical amps from Dentron and Am
/archives//html/Amps/2007-12/msg00093.html (10,358 bytes)

316. Re: [Amps] MLA-2500 (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sat, 8 Dec 2007 22:28:18 -0500
Pull the time delay tube and measure for "filament" continuity. Also visually check for a cracked base. If the unit is bad then jumper the thru path pins in the socket. Then remember to wait a good 2
/archives//html/Amps/2007-12/msg00096.html (8,549 bytes)

317. Re: [Amps] PWD transformers (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sun, 9 Dec 2007 08:16:02 -0500
John, thanks for that info, Ive been wondering about American in particular as they built xfmrs for Dentron but only had "American" on them. Ive always been impressed with the Dentron iron as they we
/archives//html/Amps/2007-12/msg00102.html (8,938 bytes)

318. [Amps] WTD: Dentron rocker switch (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sun, 9 Dec 2007 11:53:13 -0500
As used on the Clipperton L, Clipperton V, DTR-2000 and maybe others. NOT the one on the MLA-2500. It is black and SPST and used in the above amps for all rocker switches. Carl KM1H _________________
/archives//html/Amps/2007-12/msg00106.html (6,321 bytes)

319. Re: [Amps] MFJ and Dahl (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sun, 9 Dec 2007 18:16:21 -0500
What I dont understand is some of the prices charged at Dahl. Take for instance a boatanchor receiver audio output xfmr for a SX-28, NC-183D or similar. Originals were sent so some engineering wasnt
/archives//html/Amps/2007-12/msg00116.html (10,763 bytes)

320. Re: [Amps] Blown Dentrons.... (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Mon, 10 Dec 2007 19:20:38 -0500
On the MLA I would start by unsoldering the two transformer secondary leads and try powering up. Then you know which direction to proceed. If you need any help with resistance tests, etc let me know,
/archives//html/Amps/2007-12/msg00124.html (9,344 bytes)

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