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361. Re: [Amps] increasing rf gain in driver stages ? (score: 1)
Author: "Will Matney" <craxd1@verizon.net>
Date: Thu, 16 Mar 2006 00:40:34 -0500
Dan, Your speaking of a capacitor in paralell with a resistor on the emitter to ground? The resistor sets the bias and the capacitor is used as a bypass cap. Sometimes, an emitter resistor can be the
/archives//html/Amps/2006-03/msg00425.html (12,306 bytes)

362. Re: [Amps] CHASSIS (score: 1)
Author: "Will Matney" <craxd1@verizon.net>
Date: Thu, 16 Mar 2006 10:09:32 -0500
Wood cabinets for electronics have been used a huge amount. In the US, we can go back to the older TV's and stereos. I have a floor model stereo now that's a piece of furniture. You lift the lid and
/archives//html/Amps/2006-03/msg00442.html (11,427 bytes)

363. Re: [Amps] CHASSIS (score: 1)
Author: "Will Matney" <craxd1@verizon.net>
Date: Thu, 16 Mar 2006 10:23:36 -0500
Larry, There's a cage that goes with those chassis from Hammond also, but I don't think Mouser lists them now. The cage is made to drop on the top of the chassis and is well ventilated front to back.
/archives//html/Amps/2006-03/msg00444.html (9,814 bytes)

364. Re: [Amps] Happy birthday to... (score: 1)
Author: "Will Matney" <craxd1@verizon.net>
Date: Thu, 16 Mar 2006 10:59:37 -0500
Speaking of George, did you know that the same formulas for ohms law, are the same in hydraulics? The only difference is the terms are changed. Current = flow, and voltage = pressure. Resistance I'd
/archives//html/Amps/2006-03/msg00448.html (9,204 bytes)

365. Re: [Amps] Cleaning Stuff (score: 1)
Author: "Will Matney" <craxd1@verizon.net>
Date: Fri, 17 Mar 2006 12:01:31 -0500
All, I never will forget the first day on the job at ACF Industries as an industrial electrician. They built covered hopper cars there for the railroad. We had to change the plate safety glass in the
/archives//html/Amps/2006-03/msg00498.html (9,219 bytes)

366. Re: [Amps] HV switching power supplys? (score: 1)
Author: "Will Matney" <craxd1@verizon.net>
Date: Fri, 17 Mar 2006 14:27:19 -0500
What you have to watch is by increasing the amount of parts in a power supply, the odds go up dramatically that it will fail sooner over time. The more parts, the more things that can fail and cause
/archives//html/Amps/2006-03/msg00518.html (9,205 bytes)

367. [Amps] Amp faceplates (score: 1)
Author: "Will Matney" <craxd1@verizon.net>
Date: Fri, 17 Mar 2006 17:15:23 -0500
All, Would there be a good market in clear press-on labels that have both switch text, and dial markings to fit amps or other amateur equipment? These would be permanent labels, and not the rub-on ty
/archives//html/Amps/2006-03/msg00527.html (6,714 bytes)

368. Re: [Amps] Amp faceplates (score: 1)
Author: "Will Matney" <craxd1@verizon.net>
Date: Sat, 18 Mar 2006 11:14:35 -0500
Pete, I'd have hardly any overhead in these the way it stands. The only thing would take some time is the CAD layout for the whole 8-1/2 x 11 label sheet(s). The Damark sheets are about 1/2 that size
/archives//html/Amps/2006-03/msg00533.html (9,387 bytes)

369. Re: [Amps] Amp faceplates (score: 1)
Author: "Will Matney" <craxd1@verizon.net>
Date: Sat, 18 Mar 2006 11:40:16 -0500
John, That's true, manufacturers use silk screened cabinets. These are for home-brew projects where the cost of a silk screen would be very expensive for a one time job. I used to make these smae lab
/archives//html/Amps/2006-03/msg00535.html (11,797 bytes)

370. Re: [Amps] Amp faceplates (score: 1)
Author: "Will Matney" <craxd1@verizon.net>
Date: Sun, 19 Mar 2006 12:34:47 -0500
Bill, They're produced by laser/baked and toner and is the reason for no white. The result is hard to rub off but it can be abused. You cant place the print on reverse because of the adhesive backing
/archives//html/Amps/2006-03/msg00545.html (9,796 bytes)

371. Re: [Amps] series-connecting a split-stator variable cap (score: 1)
Author: "Will Matney" <craxd1@verizon.net>
Date: Sun, 19 Mar 2006 22:44:10 -0500
Scott, The capacitors rotor has to go to ground, and the stator to the tank coil to work. Generally, the rotor is connected through frame ground via a wiper. The stator is insulated. There's no way o
/archives//html/Amps/2006-03/msg00550.html (9,116 bytes)

372. [Amps] Something I just can't figure! (score: 1)
Author: "Will Matney" <craxd1@verizon.net>
Date: Mon, 20 Mar 2006 02:03:15 -0500
All, I just can't fathom the sense in this at all. Look at the links and the prices of an HP and a Sencore LCR meter. These were both listed close to each other in time under the proper place for LCR
/archives//html/Amps/2006-03/msg00551.html (7,360 bytes)

373. Re: [Amps] series-connecting a split-stator variable cap (score: 1)
Author: "Will Matney" <craxd1@verizon.net>
Date: Mon, 20 Mar 2006 02:13:35 -0500
I messed up here. Adding two series sections cuts the capacitance in half, and paralleling them increases it. Why I got turned around I don't know. Anyhow, jumping the screws over adds capacitance so
/archives//html/Amps/2006-03/msg00552.html (10,494 bytes)

374. Re: [Amps] series-connecting a split-stator variable cap (score: 1)
Author: "Will Matney" <craxd1@verizon.net>
Date: Mon, 20 Mar 2006 02:52:31 -0500
Val, How is it possible to change the voltage rating unless the air gap spacing is farther apart? I can't see how you can make a series circuit if the rotors are on a common aluminum shaft unless the
/archives//html/Amps/2006-03/msg00554.html (11,724 bytes)

375. [Amps] Capacitor plague (score: 1)
Author: "Will Matney" <craxd1@verizon.net>
Date: Mon, 20 Mar 2006 02:55:23 -0500
All, A very good article which I'm surprised made it to wikipedia. http://en.wikipedia.org/wiki/Capacitor_Plague Best, Will _______________________________________________ Amps mailing list Amps@cont
/archives//html/Amps/2006-03/msg00555.html (6,638 bytes)

376. Re: [Amps] series-connecting a split-stator variable cap (score: 1)
Author: "Will Matney" <craxd1@verizon.net>
Date: Mon, 20 Mar 2006 03:03:03 -0500
Ok, I see where your coming from. Hook the first stator to the tank coil. Then hook the rear staor to ground. That forms up the two caps in series and you insulate the shaft and the frame. I swear, I
/archives//html/Amps/2006-03/msg00556.html (11,516 bytes)

377. Re: [Amps] Capacitor plague (score: 1)
Author: "Will Matney" <craxd1@verizon.net>
Date: Mon, 20 Mar 2006 10:25:33 -0500
Cliff, What I enjoyed about the article is it named the names of the companies who made the dud caps. I'ce new about this for a good while, I just never knew all the brands. The way electrolytic caps
/archives//html/Amps/2006-03/msg00563.html (11,204 bytes)

378. Re: [Amps] series-connecting a split-stator variable cap (score: 1)
Author: "Will Matney" <craxd1@verizon.net>
Date: Mon, 20 Mar 2006 10:27:37 -0500
Oren Elliot makes a line of their caps with a nylon shaft entension. They have this on all there caps, large or small. Best, Will ** REPLY SEPARATOR ** _______________________________________________
/archives//html/Amps/2006-03/msg00564.html (10,180 bytes)

379. Re: [Amps] Capacitor plague (score: 1)
Author: "Will Matney" <craxd1@verizon.net>
Date: Mon, 20 Mar 2006 10:32:57 -0500
Darn, I need to read these, see correction. I said "I'ce new" which should have been I'd knew. Sorry folks, I'm not firing on all cylinders this morning. Best, Will ** REPLY SEPARATOR ** On 3/20/06 a
/archives//html/Amps/2006-03/msg00565.html (12,370 bytes)

380. Re: [Amps] MW Oven Transformer question (score: 1)
Author: "Will Matney" <craxd1@verizon.net>
Date: Tue, 21 Mar 2006 12:07:29 -0500
If you want to add turns to the primary (if there's enough room, and should be with the secondary removed), you can do a simple test to see how many turns to add. First, use the formulas I published
/archives//html/Amps/2006-03/msg00571.html (8,620 bytes)

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