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181. [AMPS] RF engineering (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Wed, 20 Dec 2000 14:13:50 EST; On Mon, 18 Dec 2000 10:57:54 -0700 "John T. M. Lyles" <jtml@lanl.gov> writes: <snip> Hi John, That article lost me when the author, while trying to make point about how Al Gore was uninformed, referr; /archives//html/Amps/2000-12/msg00272.html (7,400 bytes)
182. [AMPS] Advice On Homebrewing Chassis Please (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Tue, 26 Dec 2000 14:09:06 EST; On Sun, 24 Dec 2000 20:16:15 -0800 "Terry Gaiser" <W6RU@bak.rr.com> writes: Hi Terry, A corner notcher will come in handy if you want to fold up corners like a Bud "5-sided" chassis. And when folding; /archives//html/Amps/2000-12/msg00312.html (10,602 bytes)
183. [AMPS] Advice On Homebrewing Chassis Please (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Tue, 26 Dec 2000 20:23:03 EST; On Tue, 26 Dec 2000 12:21:04 -0800 "Terry Gaiser" <W6RU@bak.rr.com> writes: Hi Terry, You're welcome. I got to thinking, after I sent you my comments, that in all the years I've been building stuff,; /archives//html/Amps/2000-12/msg00320.html (9,959 bytes)
184. [AMPS] Advice On Homebrewing Chassis Please (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Tue, 26 Dec 2000 20:23:03 EST; On Tue, 26 Dec 2000 12:26:13 -0800 "Terry Gaiser" <W6RU@bak.rr.com> writes: but place I don't use that many of them but, I always seem to employ PEM nuts right up against an internal right angle of s; /archives//html/Amps/2000-12/msg00321.html (9,516 bytes)
185. [AMPS] Two Tone 2000 (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Mon, 06 Nov 2000 22:28:17 EST; Hi Everyone, I've had a breadboard of a digital (PIC microprocessor + a CD player DAC) low distortion Two-Tone Generator running for a while and I've gotten to the point of finishing it up and puttin; /archives//html/Amps/2000-11/msg00078.html (7,730 bytes)
186. [AMPS] FS: Assorted parts that may be of some use in amplifiers (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sat, 11 Nov 2000 13:43:32 EST; ** Test Equipment ** Bird Model 43 Wattmeter, w/UHF connectors, paint somewhat beat; feet & handle o.k, and most importantly it's working fine. $100 Element for Bird: 50W, 100-250 MHz $40 General Rad; /archives//html/Amps/2000-11/msg00108.html (13,907 bytes)
187. [AMPS] Directional coupler design (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Thu, 30 Nov 2000 11:44:06 EST; On Thu, 30 Nov 2000 08:25:28 -0700 "Dave D'Epagnier" <DAVED@ctilidar.com> writes: transformer for a desired I do know of a couple of old references, to what may be "original" sources, which I've unfo; /archives//html/Amps/2000-11/msg00455.html (8,174 bytes)
188. [AMPS] amp project: 4-400s X 4 (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sun, 08 Oct 2000 10:37:03 EDT; On Fri, 6 Oct 2000 16:49:54 -0700 "Lane Zeitler" <Ku7i@worldnet.att.net> writes: with old to will Hi Lane, The tubes Cout will present no problem since the impedance of the combined tubes will be &fr; /archives//html/Amps/2000-10/msg00123.html (11,219 bytes)
189. [AMPS] amp project: 4-400s X 4 (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sun, 08 Oct 2000 13:37:47 EDT; On Sun, 8 Oct 2000 16:48:00 +0100 "Ian White, G3SEK" <G3SEK@ifwtech.com> writes: better Hi Ian, I was worried current surges too; Before I tried it! When I first used this technique in my 4CX1500B am; /archives//html/Amps/2000-10/msg00125.html (10,634 bytes)
190. [AMPS] amp project: 4-400s X 4 (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Mon, 09 Oct 2000 12:01:08 EDT; short, some you am Hi Colin, Well, you only need a couple of them. Incidently, I wasn't referring to the IBM PC style power supplies. I've only tried this trick with better built commercial supplies; /archives//html/Amps/2000-10/msg00148.html (9,781 bytes)
191. [AMPS] Bird meters (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Mon, 09 Oct 2000 12:43:33 EDT; piece of up line? it's cost has though as much Hi Peter, I think you've already lost. Bird connectors are about $8 each. Whether produced by hand, or by mill, I would certainly think that those slots; /archives//html/Amps/2000-10/msg00151.html (9,615 bytes)
192. [AMPS] amp project: 4-400s X 4 (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Mon, 09 Oct 2000 12:43:33 EDT; Choke input choke, Let's take up a (silicon) diode collection for Peter. :-) couple of NPN MJE340. And some HV FET's too! current, at My experience, too. plan is cold assembly filament. collapse as m; /archives//html/Amps/2000-10/msg00152.html (10,342 bytes)
193. [AMPS] Transistor KW output match (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sun, 15 Oct 2000 16:12:53 EDT; Does anyone have any practical experience with an output network for a transistor KW amp covering 1.8-54 Mhz? The amp is designed with a 50 ohm drain impedance and I am seeking to match that to say 1; /archives//html/Amps/2000-10/msg00337.html (7,721 bytes)
194. [AMPS] G2DAF Amps Circuit (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Tue, 24 Oct 2000 22:12:02 EDT; Hi Firson, I don't believe that any suitable semiconductor diodes are made for that application. The part would need to be rated at a couple hundred volts PIV with a reverse recovery time in the vici; /archives//html/Amps/2000-10/msg00528.html (7,654 bytes)
195. [AMPS] Re: G2DAF Amps Circuit (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Wed, 25 Oct 2000 15:01:16 EDT; Hi Bill, Rich, Tom, First, I suppose I should state that I am not a proponent of the G2DAF amplifier geometry. My personal preferences in the amplifier field are in the grid driven, regulated screen,; /archives//html/Amps/2000-10/msg00537.html (10,669 bytes)
196. [AMPS] Re: G2DAF Amps Circuit (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Wed, 25 Oct 2000 21:54:58 EDT; On Wed, 25 Oct 2000 20:23:11 -0400 "Tom Rauch" <w8ji@contesting.com> writes: Of course it will, in fact the combination, without running through the math, will likely produce an overall 3rd order pro; /archives//html/Amps/2000-10/msg00549.html (9,780 bytes)
197. [AMPS] Re: G2DAF Amps Circuit (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Wed, 25 Oct 2000 22:02:05 EDT; 6AX4 or C.W.O. Hi, That may be the first US publication but, it was predated by the original author's work across the pond. The CQ article also introduced a few errors such as stating the required RF; /archives//html/Amps/2000-10/msg00550.html (9,292 bytes)
198. [AMPS] Re: G2DAF Amps Circuit (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Thu, 26 Oct 2000 12:36:02 EDT; True! And it is a shame that they aren't! If the DAF is built per the original design, with a time constant in the screen circuit that will allow the screen voltage to follow the envelope of the SSB; /archives//html/Amps/2000-10/msg00570.html (8,369 bytes)
199. [AMPS] G2DAF Circuit (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Thu, 26 Oct 2000 12:36:02 EDT; Hi Colin, That is puzzling. and I You built one!? I had a talk with a pair of 6X4's a while back and they told me to close their box tops and let them go back to sleep. :-) It does appear that the la; /archives//html/Amps/2000-10/msg00571.html (11,200 bytes)
200. [AMPS] Re: G2DAF Amps Circuit (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Thu, 26 Oct 2000 17:03:59 EDT; Hi RIch, The effective screen resistance of the 4-125A is going to vary quite a bit in the DAF as the voltage is going to wander. Let's assume a typical value, for the moment, in the range of 10K-15K; /archives//html/Amps/2000-10/msg00585.html (8,890 bytes)

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