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References: [ +from:lncarman@swbell.net: 145 ]

Total 145 documents matching your query.

41. [Amps] FW: pi to pi-L o/p matching question (score: 1)
Author: "Larry Carman" <lncarman@swbell.net>
Date: Sat, 21 May 2005 09:49:16 -0500
Here's the address to a pi and pi-l calculator I wrote using PHP for anyones use ... http://www.pinebeetle.net/amplifier_main.html Regards, Larry N5BIP When going from a Pi to a Pi-L, is the required
/archives//html/Amps/2005-05/msg00239.html (7,487 bytes)

42. Re: [Amps] FW: pi to pi-L o/p matching question (score: 1)
Author: "Larry Carman" <lncarman@swbell.net>
Date: Sun, 22 May 2005 07:36:11 -0500
Tony, Thanks for the suggestion. I'll work on adding a drop down box to select the tube family. For the short haul I'll just increase the AB2 to 1.65. Not sure where I might get the tube family info,
/archives//html/Amps/2005-05/msg00247.html (9,270 bytes)

43. Re: [Amps] copper or silver in tank circuit? (score: 1)
Author: "Larry Carman" <lncarman@swbell.net>
Date: Thu, 16 Jun 2005 07:59:14 -0500
I was told by a pro amp builder to leave out the silver and use copper only in the tank circuit. Reason: because it helps prevent parasitic on the higher frequencies. I'm speaking of HF amps working
/archives//html/Amps/2005-06/msg00120.html (9,176 bytes)

44. Re: [Amps] Tetrodes (score: 1)
Author: "Larry Carman" <lncarman@swbell.net>
Date: Tue, 12 Jul 2005 06:57:23 -0500
What causes the gas release that produces an internal arc? As many folks will remember from previous repetitions of this topic, reasons for anode-screen arcs include: 1. Loss of load at a phase angle
/archives//html/Amps/2005-07/msg00110.html (11,469 bytes)

45. Re: [Amps] Tetrodes (score: 1)
Author: "Larry Carman" <lncarman@swbell.net>
Date: Tue, 12 Jul 2005 10:24:01 -0500
Rich, that's a well know fact in the ham community. I don't understand why there hasn't been more articles in QST, etc about it and why the FCC hasn't addressed this issue. I never fire up the homebr
/archives//html/Amps/2005-07/msg00118.html (13,863 bytes)

46. Re: [Amps] Tetrodes ( Microsoft fix ) (score: 1)
Author: "Larry Carman" <lncarman@swbell.net>
Date: Wed, 13 Jul 2005 07:17:20 -0500
There is a single fix for all Microsoft problems. It's called Linux. Larry N5BIP --Original Message-- From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com]On Behalf Of R@contesting.c
/archives//html/Amps/2005-07/msg00143.html (12,897 bytes)

47. Re: [Amps] Metric system ( here is a good conversion program ) (score: 1)
Author: "Larry Carman" <lncarman@swbell.net>
Date: Fri, 5 Aug 2005 09:49:45 -0500
Pull up this link http://www.pinebeetle.net/amplifier_main.html and at the bottom of the page you can find a download of a very good conversion program which I run on my XP computer. It works with ju
/archives//html/Amps/2005-08/msg00167.html (9,656 bytes)

48. Re: [Amps] Fraudulent email to amps posters (score: 1)
Author: "Larry Carman" <lncarman@swbell.net>
Date: Sun, 7 Aug 2005 11:41:38 -0500
A couple of years ago my daughter had downloaded an installed a piece of software which installed a driver on her local computer that caused the web browser to form links based on certain keywords di
/archives//html/Amps/2005-08/msg00242.html (11,399 bytes)

49. Re: [Amps] Fraudulent email to amps posters (score: 1)
Author: "Larry Carman" <lncarman@swbell.net>
Date: Mon, 8 Aug 2005 08:06:08 -0500
Will, Thanks for the info. I'm using Ad-Aware with the XP box. Great piece of software for a freebee. I have a couple computers, one with XP installed and the other uses Fedora Core 3. Using the Mozi
/archives//html/Amps/2005-08/msg00286.html (15,052 bytes)

50. Re: [Amps] Fraudulent email to amps posters (score: 1)
Author: "Larry Carman" <lncarman@swbell.net>
Date: Tue, 9 Aug 2005 06:57:17 -0500
Rich, Why did you chose the Apple over other computers/OS's? Larry N5BIP Interesting. I run Apple's OS10.3. tnx, Larry Richard L. Measures, AG6K, 805.386.3734. www.somis.org _________________________
/archives//html/Amps/2005-08/msg00323.html (15,492 bytes)

51. Re: [Amps] [BULK] - Re: shielding TSPA (score: 1)
Author: "Larry Carman" <lncarman@swbell.net>
Date: Tue, 9 Aug 2005 07:04:39 -0500
Thanks Steve, I had a good Gecko over that. Larry N5BIP Garbage? Uh oh. I just spent $1000 to upgrade my line cord to ultra low loss ultra low distortion ultra wideband oxygen free high conductivity
/archives//html/Amps/2005-08/msg00324.html (9,428 bytes)

52. Re: [Amps] Sort Start (score: 1)
Author: "Larry Carman" <lncarman@swbell.net>
Date: Fri, 12 Aug 2005 09:27:44 -0500
The Henry RF generator using a 4 KW power supply at 4000 VDC and a filter choke only use a .5 second soft start. The 1/2 second delay seems to be plenty even with 30 mf of caps and no filter choke. I
/archives//html/Amps/2005-08/msg00427.html (9,654 bytes)

53. Re: [Amps] Sort Start (score: 1)
Author: "Larry Carman" <lncarman@swbell.net>
Date: Fri, 12 Aug 2005 12:10:22 -0500
I also noticed that the Henry used a 10 ohm 50 watt resistor in the primary of the filament transformer on the 3cx3000a7 tube amps. No relays or anything else. This resistor was for a soft start and
/archives//html/Amps/2005-08/msg00442.html (11,603 bytes)

54. [Amps] 5cx1500 sockets and chimneys for sale (score: 1)
Author: "Larry Carman" <lncarman@swbell.net>
Date: Thu, 8 Sep 2005 19:22:59 -0500
I have a couple of sockets and chimneys for the 5cx1500 tube. I was told that the 4cx1000, 4cx1500 would also work in these sockets. I would like to get $50 + shipping for a socket and a chimney. If
/archives//html/Amps/2005-09/msg00077.html (6,667 bytes)

55. Re: [Amps] YC-156 Triode (score: 1)
Author: "Larry Carman" <lncarman@swbell.net>
Date: Thu, 8 Sep 2005 19:55:25 -0500
I built an HF amp using this tube. I only run it on 20 - 80 meters. The design is very basic, much the same as most all your GG amps. The warm-up time is 6 minutes. I use a tuner prior to the amp for
/archives//html/Amps/2005-09/msg00078.html (8,632 bytes)

56. Re: [Amps] YC-156 Triode (score: 1)
Author: "Larry Carman" <lncarman@swbell.net>
Date: Fri, 9 Sep 2005 08:05:58 -0500
You are right about the 'not a directly heated cathode'. I've not detected any hum what-so-ever in this amp with the B- setup I have. If I used a standard CT filament transformer for B- the hum would
/archives//html/Amps/2005-09/msg00083.html (7,942 bytes)

57. Re: [Amps] In need of a Delay Tube (score: 1)
Author: "Larry Carman" <lncarman@swbell.net>
Date: Fri, 23 Sep 2005 09:42:53 -0500
Dave, I found the other tube relay. It's marked 115N090 so I think both are the same. May be that it will work ok in your tempo but I have no way of knowing. I found the part number you gave at http:
/archives//html/Amps/2005-09/msg00307.html (7,467 bytes)

58. Re: [Amps] In need of a Delay Tube (score: 1)
Author: "Larry Carman" <lncarman@swbell.net>
Date: Fri, 23 Sep 2005 11:59:16 -0500
Dave, Boxed both relays up & will try to ship them this afternoon. No charge for relays. Let me know when you get them and if they work ok. Regards, Larry N5BIP This is a 90 sec and will work if your
/archives//html/Amps/2005-09/msg00310.html (9,569 bytes)

59. Re: [Amps] Energy stored in capacitor bank ? (score: 1)
Author: "Larry Carman" <lncarman@swbell.net>
Date: Tue, 4 Oct 2005 08:18:34 -0500
I try to keep the HV PS capacitance at about 25uF with a 50% safety margin. All the amps I've built have used 3800VDC to 5000VDC at one to two amps. Oh! in a couple supplies I used a choke input with
/archives//html/Amps/2005-10/msg00109.html (10,332 bytes)

60. Re: [Amps] Energy stored in capacitor bank ? (score: 1)
Author: "Larry Carman" <lncarman@swbell.net>
Date: Tue, 4 Oct 2005 12:18:40 -0500
Thanks much Ian, I downloaded pusd and expanded rectifiers file. Will give it a whirl. Larry N5BIP The 'PSU Designer' program ends all the guesswork. Follow the links from my site, and also collect t
/archives//html/Amps/2005-10/msg00117.html (9,765 bytes)

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