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1. [Amps] Plate modulator xmfr ? (score: 1): Author: StephenTetorka@cs.com; Date: Sun, 10 Oct 2004 08:11:11 EDT; Hi all: I need to better understand the workings of a plate modulator for AM. Considering the RF amp with 2 x 813's and the modulator with 2 x 813's - what are the equations and math to work out the; /archives//html/Amps/2004-10/msg00127.html (6,733 bytes)
2. [Amps] Mod xmfr (score: 1): Author: StephenTetorka@cs.com; Date: Mon, 11 Oct 2004 10:30:21 -0400; Hey guys: Thanks for all this education on the plate modulator for my 2 x 813's. Seems to me that: 1. current carrying capability of the wire is first; 2. turns ratio ( creating impedance ) comes nex; /archives//html/Amps/2004-10/msg00145.html (6,826 bytes)
3. [Amps] Xmfr data? (score: 1): Author: StephenTetorka@cs.com; Date: Tue, 12 Oct 2004 10:09:10 -0400; Hi all: Need data on the following xmfrs: Kenyon T-442 Chicago CMS-2 ( not -3 ) Tnx, Steve WA2TAK _______________________________________________ Amps mailing list Amps@contesting.com http://lists.co; /archives//html/Amps/2004-10/msg00173.html (6,425 bytes)
4. [Amps] T-442? (score: 1): Author: StephenTetorka@cs.com; Date: Fri, 15 Oct 2004 12:24:39 -0400; Hi guys: I got myself a Kenyon audio xmfr... model T-442...for my 813 work-in-prgress. The bugger is rated 600 watts and 45 lbs. The good news is that the primary range is from 500 to 18,000 ohms wit; /archives//html/Amps/2004-10/msg00218.html (7,282 bytes)
5. [Amps] Why only 5kw? (score: 1): Author: StephenTetorka@cs.com; Date: Wed, 20 Oct 2004 17:27:33 -0400; Found this interestig rig for your shack... http://www.rossrevenge.co.uk/tx/continental.htm "Loud pipes save lives"...biker saying. 73 Steve WA2TAK _______________________________________________ Amp; /archives//html/Amps/2004-10/msg00322.html (6,689 bytes)
6. [Amps] Reverb + amps? (score: 1): Author: StephenTetorka@cs.com; Date: Thu, 21 Oct 2004 09:45:41 -0400; Hi all: Wonder if anyone might be able to help me on this one. I wish to install a car "reverb unit" - circa 1970 - in my 1997 Mercury. These things were pretty hot in the 60's when HiFi was 'it'. Th; /archives//html/Amps/2004-10/msg00359.html (6,467 bytes)
7. [Amps] Semtech? (score: 1): Author: StephenTetorka@cs.com; Date: Mon, 25 Oct 2004 13:25:45 -0400; Hi all: Got my 813 parts rig. The PS has two " Semtech SA 7477 " rectifiers. Black metal tube with pix of diode on it...top metal cap. Might anyone have data on it? How to check them? Should I use th; /archives//html/Amps/2004-10/msg00398.html (6,181 bytes)
8. RE: [BULK] - [Amps] Semtech? (score: 1): Author: StephenTetorka@cs.com; Date: Mon, 25 Oct 2004 11:24:08 -0400; Yes - it has base-pins just like a vacuum tube. The metal cap is on the top of the recifier metal case. Unit is about 3.5 inch tall. I would think my two replace a HV tube since it rectified for 2 x; /archives//html/Amps/2004-10/msg00404.html (8,751 bytes)
9. [Amps] Vacuum or Air? (score: 1): Author: StephenTetorka@cs.com; Date: Thu, 28 Oct 2004 10:05:35 -0400; Hi Guys: I'm starting to accumulate the parts for my 2 x 813 AM amp. Got a 'thousand' questions and enjoy all this Hamology. Permit me to pose one: what factors (other than cost) should be considered; /archives//html/Amps/2004-10/msg00482.html (6,642 bytes)
10. [Amps] A Meeting Ground (score: 1): Author: StephenTetorka@cs.com; Date: Thu, 04 Nov 2004 12:25:06 -0500; Hi All: This radiant discussion on parasitics invites me to ask a question: "where does all the 'mish-mash' go to when a chassis ground is employed?" Signals and voltages that are DC, AC and RF are a; /archives//html/Amps/2004-11/msg00072.html (7,041 bytes)
11. [Amps] Learning 'bout Amps (score: 1): Author: StephenTetorka@cs.com; Date: Thu, 04 Nov 2004 16:34:57 -0500; Thanks Guys: I appreciate your time in the replies. I'm learning quite a lot from your discussions; appreciate being here. And, its giving me the growing confidence to tackle my 2 x 813 rig I've 'ded; /archives//html/Amps/2004-11/msg00086.html (7,404 bytes)
12. Re: [Amps] A Meeting Ground (score: 1): Author: StephenTetorka@cs.com; Date: Thu, 04 Nov 2004 16:48:40 -0500; Hi Bill: This 'net result' is my point. And this net result cornucopia goes into and out of all those individual circuit loops. Amazes me. Guess that's why I choose Civil over EE... Regards, Steve Bi; /archives//html/Amps/2004-11/msg00087.html (9,045 bytes)
13. [Amps] parasitic LC>load? (score: 1): Author: StephenTetorka@cs.com; Date: Thu, 11 Nov 2004 16:39:43 -0500; Hi all: Been thinking. If some of these rigs 'want to' go parasitic, would it be beneficial to help them via a broadband VHF resonant circuit that is coupled to the HF RF tank with that VHF LC discha; /archives//html/Amps/2004-11/msg00159.html (6,233 bytes)
14. Re: [Amps] parasitic LC>load? (score: 1): Author: StephenTetorka@cs.com; Date: Fri, 12 Nov 2004 10:20:37 -0500; Say his single loop is about 2 inches in diameter. Inductance is around 0.1 microhenries. At 50 MHz XL is 30 ohms; at 150 MHz its 95 ohms. Using 0.010 inch diameter wire having a Resistivity of 200,; /archives//html/Amps/2004-11/msg00172.html (8,657 bytes)
15. [Amps] Xmfr? (score: 1): Author: StephenTetorka@cs.com; Date: Tue, 07 Dec 2004 17:25:25 -0500; Hi guys: I need a transformer: 750 CT 750 @ 200 ma. Anyone have anything close? Tnx, Steve WA2TAK _______________________________________________ Amps mailing list Amps@contesting.com http://lists.co; /archives//html/Amps/2004-12/msg00129.html (5,980 bytes)
16. [Amps] amp matter (score: 1): Author: StephenTetorka@cs.com; Date: Fri, 04 Feb 2005 15:14:27 -0500; Hi guys: Would appreciate your kind help with my homebrew amp. At this time, I wish to put a Pi network in the output. I believe the input impedance value is the tube DC plate voltage divided by the; /archives//html/Amps/2005-02/msg00104.html (6,968 bytes)
17. [Amps] Nylon - 2 cents (score: 1): Author: StephenTetorka@cs.com; Date: Tue, 15 Mar 2005 09:45:46 -0500; I was in the specialty wire business for a few years. Nylon was not generally used as a sole insulating overcoat. The main use was for heat bonding adjoining wires coated with it OVER the wire insula; /archives//html/Amps/2005-03/msg00340.html (6,653 bytes)
18. [Amps] Nylon (score: 1): Author: StephenTetorka@cs.com; Date: Wed, 16 Mar 2005 09:43:23 -0500; Seems like we have yet to consider some common "high performance polymers"...like PEEK (Polyetheretherketon). R, S _______________________________________________ Amps mailing list Amps@contesting.co; /archives//html/Amps/2005-03/msg00375.html (6,000 bytes)
19. [Amps] Minutemen need Hams.. (score: 1): Author: StephenTetorka@cs.com; Date: Thu, 24 Mar 2005 17:10:32 -0500; ...hear about those US citizens helping patrol the Arizona border this April to keep immigrants from penetrating the US?? They need hams to help communicate. See web page:http://www.minutemanproject.; /archives//html/Amps/2005-03/msg00547.html (6,256 bytes)
20. [Amps] Power out? (score: 1): Author: StephenTetorka@cs.com; Date: Fri, 25 Mar 2005 11:25:19 -0500; Hi guys: Regarding the measurement, where might the use of the RF Ammeter land in this discussion? It's SOP for my shack...on the coax ( 1 meter ) or the twinlead ( 2 meters ). R, Steve WA2TAK ______; /archives//html/Amps/2005-03/msg00554.html (6,106 bytes)

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