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Total 29 documents matching your query.

1. [Amps] The Pin One Problem (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Thu, 06 Jun 2013 10:28:35 -0700; The pin 1 problem generally is not a problem with the gear but with the external wiring Actually, it is a problem built into equipment by a designer/manufacturer who fails to terminate a cable shiel; /archives//html/Amps/2013-06/msg00123.html (9,938 bytes)
2. Re: [Amps] The Pin One Problem (score: 1): Author: "Jim Garland" <4cx250b@miamioh.edu>; Date: Thu, 6 Jun 2013 11:49:48 -0600; I realize we're straying rather far afield from amplifier topics, so pse overlook my wading into the discussion. The proliferation of outboard audio devices for transceivers, and the desire to mix an; /archives//html/Amps/2013-06/msg00125.html (11,353 bytes)
3. Re: [Amps] The Pin One Problem (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Thu, 6 Jun 2013 16:53:36 -0400; You stated in that memo (Id steer away from "tutorial as K9YC has a lock on that term) that : " or any indication of inadequate shielding. It rather is caused by AC currents that flow on the outer su; /archives//html/Amps/2013-06/msg00130.html (14,807 bytes)
4. Re: [Amps] The Pin One Problem (score: 1): Author: "Peter Voelpel" <dj7ww@t-online.de>; Date: Thu, 6 Jun 2013 23:22:00 +0200; There is not much ham gear on the market with a pin 1. And in consumer audio equipment it is rather RCA then XLR. 73 Peter Actually, it is a problem built into equipment by a designer/manufacturer wh; /archives//html/Amps/2013-06/msg00132.html (8,921 bytes)
5. Re: [Amps] The Pin One Problem (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Thu, 06 Jun 2013 15:15:25 -0700; The Pin One Problem applies to ALL equipment with a cable shield, and to both balanced and unbalanced wiring. See the tutorials. It is simply CALLED The Pin One Problem because a guy working in pro a; /archives//html/Amps/2013-06/msg00135.html (9,481 bytes)
6. Re: [Amps] The Pin One Problem (score: 1): Author: "Peter Voelpel" <dj7ww@t-online.de>; Date: Fri, 7 Jun 2013 01:16:51 +0200; I learned about the pin1 problem many many years ago when XLR started to show up on WDR+Deutsche Welle equipment, with the DIN connectors before it was a pin2 problem. I do not agree to call everythi; /archives//html/Amps/2013-06/msg00136.html (9,667 bytes)
7. Re: [Amps] The Pin One Problem (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Thu, 06 Jun 2013 21:04:01 -0700; When you invent, create, or discover something, you get to name it. Neil did, you and I did not. :) BTW, Neil chose the name proposed by Bernhard Weingartner, the engineer who founded the excellent c; /archives//html/Amps/2013-06/msg00144.html (8,954 bytes)
8. Re: [Amps] The Pin One Problem (score: 1): Author: "Ian White" <gm3sek@ifwtech.co.uk>; Date: Fri, 7 Jun 2013 07:51:30 +0100; Would that would be "Brown's Law"? I'm sorry, Jim, but it just ain't so. We all understand your personal respect for Neil Muncie, but there are other overriding priorities such as respect for truth a; /archives//html/Amps/2013-06/msg00147.html (9,250 bytes)
9. Re: [Amps] The Pin One Problem (score: 1): Author: "Alex Eban" <alexeban@gmail.com>; Date: Fri, 7 Jun 2013 12:11:33 +0300; What about plain old ground loops, numerology set aside? Alex 4Z5KS Would that would be "Brown's Law"? I'm sorry, Jim, but it just ain't so. We all understand your personal respect for Neil Muncie, b; /archives//html/Amps/2013-06/msg00149.html (10,141 bytes)
10. Re: [Amps] The Pin One Problem (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Fri, 7 Jun 2013 10:58:28 -0400; That would be too easy since ground loops go almost back to prehistory when many discovered the same thing independently at almos the same time. OTOH, before the Brown Theorem it was always called gr; /archives//html/Amps/2013-06/msg00154.html (12,136 bytes)
11. Re: [Amps] The Pin One Problem (score: 1): Author: Vic K2VCO <k2vco.vic@gmail.com>; Date: Fri, 07 Jun 2013 08:09:36 -0700; How about "broken shield problem"? At least that relates to the essence of the problem, which is that the shield isn't continuous, not a pin number, which is arbitrary. When you invent, create, or di; /archives//html/Amps/2013-06/msg00155.html (10,357 bytes)
12. Re: [Amps] The Pin One Problem (score: 1): Author: "Joe Subich, W4TV" <lists@subich.com>; Date: Fri, 07 Jun 2013 11:12:20 -0400; The problem is that it is not a "Ground loop" - there is no issue with multiple grounding if the inputs to the device are designed properly. It occurs only when the signal return is not correctly con; /archives//html/Amps/2013-06/msg00156.html (12,692 bytes)
13. Re: [Amps] The Pin One Problem (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Fri, 7 Jun 2013 11:38:21 -0400; It is obvious that you have drifted off the subject which related to the Station Pro which Jim thouroughly explained the ground loop issue. Carl KM1H The problem is that it is not a "Ground loop" - t; /archives//html/Amps/2013-06/msg00158.html (13,900 bytes)
14. Re: [Amps] The Pin One Problem (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Fri, 7 Jun 2013 14:32:03 -0400; 'The problem is that it is not a "Ground loop"...' To Joe's point, a ground loop isn't even necessary to create a "Pin 1" problem. The problem always manifests when current induced on a shield modula; /archives//html/Amps/2013-06/msg00164.html (11,293 bytes)
15. Re: [Amps] The Pin One Problem (score: 1): Author: "Joe Subich, W4TV" <lists@subich.com>; Date: Fri, 07 Jun 2013 15:15:55 -0400; I am quite familiar with the issue and while Dr. Garland may call it a "ground loop", the problem with The W8ZR Station Pro is the same old problem in interfacing with improperly designed amateur equ; /archives//html/Amps/2013-06/msg00166.html (16,885 bytes)
16. Re: [Amps] The Pin One Problem (score: 1): Author: "Jim Garland" <4cx250b@miamioh.edu>; Date: Fri, 7 Jun 2013 16:55:47 -0600; Joe, I'm not sure why you think the StationPro causes problems in interfacing to amateur equipment. The problems a few StationPro builders have encountered with hum in their microphone circuits have; /archives//html/Amps/2013-06/msg00169.html (22,605 bytes)
17. Re: [Amps] The Pin One Problem (score: 1): Author: "Joe Subich, W4TV" <lists@subich.com>; Date: Fri, 07 Jun 2013 21:49:22 -0400; Jim, I'm not saying that StationPro *causes* problems. My point is that any external device that provides a path for transceiver supply currents to interact with the mic return will have problems wit; /archives//html/Amps/2013-06/msg00172.html (25,173 bytes)
18. Re: [Amps] The Pin One Problem (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Fri, 7 Jun 2013 22:34:33 -0400; I am quite familiar with the issue and while Dr. Garland may call it a "ground loop", the problem with The W8ZR Station Pro is the same old problem in interfacing with improperly designed amateur equ; /archives//html/Amps/2013-06/msg00174.html (21,144 bytes)
19. Re: [Amps] The Pin One Problem (score: 1): Author: "Joe Subich, W4TV" <lists@subich.com>; Date: Fri, 07 Jun 2013 23:15:45 -0400; Another flippant remark from someone who prefers to engage in personal attacks rather conduct reasonable discussion about the technology. Then you did not look at the Yaesu FT-1000D, FT-1000MP, FT-1; /archives//html/Amps/2013-06/msg00176.html (21,233 bytes)
20. Re: [Amps] The Pin One Problem (score: 1): Author: donroden@hiwaay.net; Date: Sat, 08 Jun 2013 05:37:58 -0500; I don't like the "Pin 1" term, but there may not be a better way to describe the problem in a one of two word title. Paul, W9AC One word ........ transformerless. Don W4DNR __________________________; /archives//html/Amps/2013-06/msg00177.html (8,828 bytes)

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