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Total 683 documents matching your query.

1. Re: [Amps] Dummy Load (score: 1)
Author: "Will Matney" <craxd1@ezwv.com>
Date: Mon, 23 May 2005 11:50:41 -0400
Stefan, One way I've seen them built the way your wanting to do it is use 4 narrow PC boards with an etched line down eachs middle. The resistors solder across this line where it made two long copper
/archives//html/Amps/2005-05/msg00270.html (8,867 bytes)

2. Re: [Amps] Amps Digest, Vol 29, Issue 40 (score: 1)
Author: "Will Matney" <craxd1@ezwv.com>
Date: Mon, 23 May 2005 10:41:28 -0400
Joe, Yes, it's for HF. The choke program works good, just tell it the diameter of the coil measured from the center of the wire across the coil, the length of the coil, and the number of turns. It's
/archives//html/Amps/2005-05/msg00268.html (29,057 bytes)

3. Re: [Amps] FW: pi to pi-L o/p matching question (score: 1)
Author: "Will Matney" <craxd1@ezwv.com>
Date: Sun, 22 May 2005 16:13:47 -0400
Barrie, I didn't see an Image Q, but see an Image Z for image impedance which is the mid impedance at load C. You are speaking of the PHP script Pi-L app on pinebeetle.net? Best, Will ** REPLY SEPARA
/archives//html/Amps/2005-05/msg00254.html (8,607 bytes)

4. Re: [Amps] RENEGADE CUSTOM 300B (score: 1)
Author: "Will Matney" <craxd1@ezwv.com>
Date: Sun, 22 May 2005 14:47:26 -0400
Johns right, I never thought of that. Is it possible it is connected for 220 Vac but being ran on 110 vac? Most 3-500Z amps are ran from 220. That would drop both the heater and plate voltage to half
/archives//html/Amps/2005-05/msg00250.html (7,522 bytes)

5. Re: [Amps] RENEGADE CUSTOM 300B (score: 1)
Author: "Will Matney" <craxd1@ezwv.com>
Date: Sun, 22 May 2005 00:45:18 -0400
James, I wasn't sure on the plate voltage I listed so I checked it and it should be 4000 Vdc maximum. So say 3500 to 4000 Vdc. Will ** REPLY SEPARATOR ** _____________________________________________
/archives//html/Amps/2005-05/msg00246.html (12,818 bytes)

6. [Amps] RENEGADE CUSTOM 300B (score: 1)
Author: JAMES SMITH <kg6nlb@yahoo.com>(Redirected by "Will Matney"<craxd1@ezwv.com>)
Date: Sat, 21 May 2005 14:46:54 -0700
(Redirected by "Will Matney" <craxd1@ezwv.com>) James, see below; REGARDING A NEWLY ACQUIRED 6 METER AMP THAT COVERS 1.8 TO 53 MHZ BUT IS NOT WORKING TO IT'S FULLEST EXTENT. I HAVE SOME KNOWLEDGE BUT
/archives//html/Amps/2005-05/msg00244.html (11,019 bytes)

7. Re: [Amps] ARF1505 (score: 1)
Author: "Will Matney" <craxd1@ezwv.com>
Date: Sat, 21 May 2005 04:23:53 -0400
Steve, I don't know on this device as the spec sheet doesn't have any curve charts, etc. One could probably get them from the manufacturer or I looked over where to download them. Best, Will ** REPLY
/archives//html/Amps/2005-05/msg00234.html (10,282 bytes)

8. Re: [Amps] ARF1505 (score: 1)
Author: "Will Matney" <craxd1@ezwv.com>
Date: Fri, 20 May 2005 23:44:51 -0400
What the spec sheet says is this; "The ARF1505 is an RF power transistor designed for off-line 300V operation in very high power scientific, commercial, medical and industrial RF power generator and
/archives//html/Amps/2005-05/msg00231.html (10,737 bytes)

9. Re: [Amps] Need chimney material info (score: 1)
Author: "Will Matney" <craxd1@ezwv.com>
Date: Fri, 20 May 2005 23:34:21 -0400
Ron, You can also use paper electrical tubing ( if you can find the right I.D.), or thick fish paper about 30-40 mils thick. The temperature rating for fish paper is within what the tube runs at norm
/archives//html/Amps/2005-05/msg00230.html (9,007 bytes)

10. Re: [Amps] test frequency TSPA (score: 1)
Author: "Will Matney" <craxd1@ezwv.com>
Date: Fri, 20 May 2005 17:21:45 -0400
The way I read that, it was for linear amplification at 750 watts as it was designed to work between 2 to 40 MHz. Even though it can be used as part of a plasma generator, etc., they had other amateu
/archives//html/Amps/2005-05/msg00219.html (9,553 bytes)

11. Re: [Amps] ARF1505 (score: 1)
Author: "Will Matney" <craxd1@ezwv.com>
Date: Fri, 20 May 2005 16:57:03 -0400
I think they mentioned using a copper spreader plate because of this in the literature. The part itself, where it hits the heatsink is about 1-1/16" X 1-1/16" square. That's a good bit of concentrate
/archives//html/Amps/2005-05/msg00218.html (8,880 bytes)

12. Re: [Amps] ARF1505 (score: 1)
Author: "Will Matney" <craxd1@ezwv.com>
Date: Fri, 20 May 2005 16:47:03 -0400
Gene, They have the search link for Richardson screwed up. Go and use the part search again after the window opens that says it's not there, and re-type in the part number. If I recall, 1-50 were lik
/archives//html/Amps/2005-05/msg00217.html (7,831 bytes)

13. Re: [Amps] ARF1505 (score: 1)
Author: "Will Matney" <craxd1@ezwv.com>
Date: Thu, 19 May 2005 12:37:44 -0400
Tony, I figured either that or they just went out and bought a cheap transceiver to do the test, which we know they are the cheapest. One thing, that's a cheap single device amp shown to construct. T
/archives//html/Amps/2005-05/msg00209.html (8,590 bytes)

14. [Amps] ARF1505 (score: 1)
Author: "Will Matney" <craxd1@ezwv.com>
Date: Thu, 19 May 2005 12:12:42 -0400
All, Has anyone tried the ARF1505 FET in any solid state amps yet? The characteristics look very good and it is a HV FET running at 300 Vdc with a 700 watt output. It is for operation primarily from
/archives//html/Amps/2005-05/msg00207.html (7,448 bytes)

15. [Amps] mail (score: 1)
Author: "Will Matney" <craxd1@ezwv.com>
Date: Tue, 17 May 2005 22:00:25 -0400
Hello all, I have been in the hospital from last Monday the 9th until today, Tuesday the 17th for a blood clot in my right leg. I had so much mail in the server, really I just deleted most of it as i
/archives//html/Amps/2005-05/msg00203.html (6,427 bytes)

16. Re: [Amps] Ratshack switches (score: 1)
Author: "Will Matney" <craxd1@ezwv.com>
Date: Mon, 09 May 2005 13:08:50 -0400
Dick, It makes one wonder how many of us had that happen too, not just on here. I didn't take mine back but should have for a refund. Of course they could have argued we burnt them up, which is a bun
/archives//html/Amps/2005-05/msg00149.html (10,018 bytes)

17. [Amps] Ratshack switches (score: 1)
Author: "Will Matney" <craxd1@ezwv.com>
Date: Mon, 09 May 2005 11:42:24 -0400
I don't know if any has experienced this but figured I'd mention it to save some money. I bought some rocker switches at Radio Shack, the ones that look like the square rocker switches, but mount in
/archives//html/Amps/2005-05/msg00148.html (7,188 bytes)

18. [Amps] 8908 tube (score: 1)
Author: "Will Matney" <craxd1@ezwv.com>
Date: Sun, 08 May 2005 22:29:11 -0400
Folks, I'd like to find someone with a GE spec sheet book who could copy/scan the spec sheets for the 8908 beam power tetrode. I've looked high and low and can't find one. All I have on it is in a ch
/archives//html/Amps/2005-05/msg00146.html (6,552 bytes)

19. Re: [Amps] MOT MDA1333H -- more (score: 1)
Author: "Will Matney" <craxd1@ezwv.com>
Date: Sun, 08 May 2005 22:18:53 -0400
Bud, Thanks for that info. Do you have the big Motorola book (hardback) which has the in house numbers your using? If so, I've been thinking about locating and buying one but haven't yet. Best, Will
/archives//html/Amps/2005-05/msg00144.html (8,408 bytes)

20. Re: [Amps] Diode Spec. (score: 1)
Author: "Will Matney" <craxd1@ezwv.com>
Date: Sun, 08 May 2005 20:42:17 -0400
Well, I found the book from 1988 and it dont have it. the MDA rectifiers it shows start at the 2500 series and go up to the 4000 series. They are all bridge rectifiers with the 2500 being a 25 amp re
/archives//html/Amps/2005-05/msg00141.html (10,663 bytes)

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