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Total 8 documents matching your query.

1. [Amps] Checking relay timing with a scope (score: 1): Author: Pete Smith <n4zr@contesting.com>; Date: Sat, 20 Jun 2009 15:52:10 -0400; I've only been doing this ham radio thing for 55 years, but until this year I never owned or even used an oscilloscope. I now have an old 15-MHz dual trace machine that works fine, and I'm trying to; /archives//html/Amps/2009-06/msg00083.html (6,951 bytes)
2. Re: [Amps] Checking relay timing with a scope (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Sat, 20 Jun 2009 16:12:08 -0400; Pete: Here's a method I use to ensure proper amp relay sequencing: First, I utilize a dual trace scope (Tektronix SC 504). Channel 1 is DC-coupled and is used to monitor the amp key line closure, an; /archives//html/Amps/2009-06/msg00084.html (9,756 bytes)
3. Re: [Amps] Checking relay timing with a scope (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Sat, 20 Jun 2009 16:12:12 -0400; _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2009-06/msg00085.html (8,101 bytes)
4. Re: [Amps] Checking relay timing with a scope (score: 1): Author: "Bill, W6WRT" <dezrat1242@yahoo.com>; Date: Sun, 21 Jun 2009 08:00:17 -0700; ORIGINAL MESSAGE: REPLY: Before I can answer the question I need to know two things: Is it a dual trace scope, and is it a triggered-sweep or 'synchronized' sweep scope? 73, Bill W6WRT ______________; /archives//html/Amps/2009-06/msg00087.html (8,339 bytes)
5. Re: [Amps] Checking relay timing with a scope (score: 1): Author: Pete Smith <n4zr@contesting.com>; Date: Sun, 21 Jun 2009 11:14:33 -0400; It is dual trace, and it has choice of internal or external triggering. 73, Pete N4ZR _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com; /archives//html/Amps/2009-06/msg00088.html (8,878 bytes)
6. Re: [Amps] Checking relay timing with a scope (score: 1): Author: "Bill, W6WRT" <dezrat1242@yahoo.com>; Date: Sun, 21 Jun 2009 08:28:30 -0700; ORIGINAL MESSAGE: REPLY: Ok, the best way to observe relay closure is to temporarily wire a DC source to each relay's armature (the movable wiper) and connect the output of each relay to one channel; /archives//html/Amps/2009-06/msg00089.html (8,718 bytes)
7. Re: [Amps] Checking relay timing with a scope (score: 1): Author: Manfred Mornhinweg <mmornhin@gmx.net>; Date: Mon, 22 Jun 2009 02:35:35 +0000; Hi Pete, and all, I'm not sure if my advice is welcome at all, given that you want to do something useful with your new scope. But for measuring the closure time of a relay, or any other such slow on; /archives//html/Amps/2009-06/msg00090.html (9,131 bytes)
8. Re: [Amps] Checking relay timing with a scope (score: 1): Author: "Bill, W6WRT" <dezrat1242@yahoo.com>; Date: Mon, 22 Jun 2009 09:32:08 -0700; ORIGINAL MESSAGE: REPLY: Very clever! As a long time scope junkie I would have never thought of that in a million years, but I will keep it in mind for the future. 73, Bill W6WRT ____________________; /archives//html/Amps/2009-06/msg00092.html (8,057 bytes)

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