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261. Re: RE : [Amps] A thought about regulating fil voltage... (score: 1)
Author: Will Matney <craxd1@ezwv.com>
Date: Fri, 29 Oct 2004 20:22:04 -0400
Jos, Actually there is benefits from running DC on the heater I have read about. It would be easy to regulate like your talking of. The low current is a big plus. Best & 73's Will Matney hermans wrot
/archives//html/Amps/2004-10/msg00514.html (10,145 bytes)

262. Re: [Amps] SB-1000 meter switch (score: 1)
Author: Will Matney <craxd1@ezwv.com>
Date: Sun, 31 Oct 2004 10:28:01 -0500
Jim, Those switches, from about every manufacturer, are designed around EIA standards and should fit from one to another. There's several of these in the Allied catalog, and I think Mouser carries th
/archives//html/Amps/2004-10/msg00525.html (8,258 bytes)

263. Re: [Amps] SB-1000 meter switch (score: 1)
Author: Will Matney <craxd1@ezwv.com>
Date: Sun, 31 Oct 2004 10:47:41 -0500
Pete, Not necessarily. Heathkit had switches made with different contact numbers, etc, and the way they switched. To replace them with a standard can be done, but you have to determine how to re-wire
/archives//html/Amps/2004-10/msg00526.html (9,510 bytes)

264. Re: [Amps] SB-1000 meter switch (score: 1)
Author: Will Matney <craxd1@ezwv.com>
Date: Sun, 31 Oct 2004 12:03:24 -0500
Pete, I'm actually in Proctorville, Ohio right across the river from Huntington, WV. The 31st street bridge comes right into the town and I'm about 3-1/2 miles up the river from that. I used to be ab
/archives//html/Amps/2004-10/msg00527.html (12,172 bytes)

265. [Amps] SB-220 Meter Switch (score: 1)
Author: Will Matney <craxd1@ezwv.com>
Date: Sun, 31 Oct 2004 14:23:49 -0500
Pete, I took a look at the SB-220 schematic and the meter switch is a 3 pole single throw rotary. A standard stock switch should work providing it has the correct shaft, mounting hole dia., and index
/archives//html/Amps/2004-10/msg00529.html (6,946 bytes)

266. Re: [Amps] Amplifer that was for sale (score: 1)
Author: Will Matney <craxd1@ezwv.com>
Date: Tue, 02 Nov 2004 00:05:57 -0500
Richard, It had to be someone reporting it as an illegal item for them to do that. They don't hardly mess with anything unless someone does report it. I wouldn't report anything like that. Heck folks
/archives//html/Amps/2004-11/msg00015.html (8,529 bytes)

267. Re: [Amps] Amplifer that was for sale (score: 1)
Author: Will Matney <craxd1@ezwv.com>
Date: Tue, 02 Nov 2004 14:39:16 -0500
Bill, This is a good example of how tattle-telling on the amps being sold has back-fired and is causing problems with amateur sales. I'm not for sure, but I heard there's a few who monitor eBay and o
/archives//html/Amps/2004-11/msg00022.html (9,509 bytes)

268. Re: [Amps] Amplifier that was for sale (score: 1)
Author: Will Matney <craxd1@ezwv.com>
Date: Tue, 02 Nov 2004 15:30:32 -0500
Dave, I was by the FCC website about a month back and couldn't see anything about a rule change. I don't know if it passed or not. I heard it was probably going to but not a soul has said if it did o
/archives//html/Amps/2004-11/msg00025.html (12,014 bytes)

269. Re: [Amps] SB-220 (score: 1)
Author: Will Matney <craxd1@ezwv.com>
Date: Wed, 03 Nov 2004 13:23:46 -0500
To all, A quick question here, and may open up a big can of worms, if there is no such things as parasitics in amplifiers, why do they all come with parasitic suppressors on the anode leads? Now if I
/archives//html/Amps/2004-11/msg00038.html (12,898 bytes)

270. Re: [Amps] SB-220 (score: 1)
Author: Will Matney <craxd1@ezwv.com>
Date: Wed, 03 Nov 2004 13:58:51 -0500
Steve, That's the way I always looked at it too. But, and here's a big but, I read a few webpages that says VHF oscillations are a bunch of bologna. These very authors was or still might be high up i
/archives//html/Amps/2004-11/msg00041.html (10,700 bytes)

271. Re: [Amps] Parasitic Oscillation (score: 1)
Author: Will Matney <craxd1@ezwv.com>
Date: Wed, 03 Nov 2004 20:40:05 -0500
Hal, Marv made a very good point earlier when he mentioned about Bill Orr being associated with Eimac and said "there is no such thing as an amplifier that does not have parasitics! He made it clear
/archives//html/Amps/2004-11/msg00052.html (11,415 bytes)

272. Re: [Amps] Parasitic Oscillation (score: 1)
Author: Will Matney <craxd1@ezwv.com>
Date: Thu, 04 Nov 2004 01:11:46 -0500
Rich, be plugged in. I would think so too! commercial amps aren't >>either. Plus those tubes in that amp didn't look no where new to me so the gain may have >>been lower than fresh tubes of 3-500Zs I
/archives//html/Amps/2004-11/msg00057.html (9,216 bytes)

273. Re: [Amps] SB-220 parasitic suppressors (score: 1)
Author: Will Matney <craxd1@ezwv.com>
Date: Thu, 04 Nov 2004 21:54:11 -0500
for the VHF energy produced thereby to reach the load. Man I was waiting one somebody to finally say that =) Will Matney _______________________________________________ Amps mailing list Amps@contes
/archives//html/Amps/2004-11/msg00091.html (8,879 bytes)

274. Re: [Amps] A Meeting Ground (score: 1)
Author: Will Matney <craxd1@ezwv.com>
Date: Thu, 04 Nov 2004 22:07:05 -0500
Bill Fuqua wrote: This has always been an issue. Particularly when high-Q circuits are involved. One time while helping the accelerator tech try to find out why our 20 MHz, 10KW bunching amplifier si
/archives//html/Amps/2004-11/msg00092.html (10,197 bytes)

275. Re: [Amps] A Meeting Ground (score: 1)
Author: Will Matney <craxd1@ezwv.com>
Date: Fri, 05 Nov 2004 17:54:12 -0500
Dennis, Well they probably would somewhat but I would think the currents in the face plate would be reduced a good degree this way. If the negative from the power supply is attached directly to the c
/archives//html/Amps/2004-11/msg00103.html (10,999 bytes)

276. Re: [Amps] A Meeting Ground (score: 1)
Author: Will Matney <craxd1@ezwv.com>
Date: Fri, 05 Nov 2004 22:33:53 -0500
Dennis12Amplify@aol.com wrote: In a message dated 11/5/04 4:57:10 PM Central Standard Time, craxd1@ezwv.com writes: Dennis, Well they probably would somewhat but I would think the currents in the fac
/archives//html/Amps/2004-11/msg00114.html (13,942 bytes)

277. Re: [Amps] A Meeting Ground (score: 1)
Author: Will Matney <craxd1@ezwv.com>
Date: Fri, 05 Nov 2004 22:37:24 -0500
Rich, This only happens when the adversary has nothing else to fight with. Kind of like a politician slinging mud in a campaign they're fixing to loose. =) Will Matney R.Measures wrote: On Nov 5, 200
/archives//html/Amps/2004-11/msg00115.html (12,274 bytes)

278. Re: [Amps] A Meeting Ground (score: 1)
Author: Will Matney <craxd1@ezwv.com>
Date: Fri, 05 Nov 2004 22:54:59 -0500
Tony King wrote: At 10:33 PM 11/5/2004, Will Matney wrote: <snip> Well, the DC currents and RF currents are intermixed in the chassis itself. The RF current circulates through the tank circuit to the
/archives//html/Amps/2004-11/msg00117.html (11,015 bytes)

279. Re: [Amps] Ten-Tec Centurion (score: 1)
Author: Will Matney <craxd1@ezwv.com>
Date: Wed, 10 Nov 2004 20:15:36 -0500
Rich and Tom, I'm pretty sure there's no RF switching circuit in that amplifier. About the only use of this I remember in amateur amps was a mobile solid-state amp. I doubt it would have a relay jack
/archives//html/Amps/2004-11/msg00136.html (11,300 bytes)

280. Re: [Amps] Ten-Tec Centurion (score: 1)
Author: Will Matney <craxd1@ezwv.com>
Date: Thu, 11 Nov 2004 14:22:40 -0500
Ian put forth a very good point. If the amp could be switched to transmit mode by RF sensing, it would be illegal under U.S. law and could not be produced. This holds true for any amps yet or until t
/archives//html/Amps/2004-11/msg00158.html (12,300 bytes)

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