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Total 7 documents matching your query.

1. [Amps] HV Divider (score: 1): Author: "KB0NLY" <kb0nly@mchsi.com>; Date: Sun, 1 Mar 2009 13:47:12 -0600; I'm using GM3SEK's Triode Board for my 6m amp project using the GI-7B, i ran into a problem today with the power supply. According to his manual, i sent him an email as well waiting for a reply, for; /archives//html/Amps/2009-03/msg00020.html (7,379 bytes)
2. Re: [Amps] HV Divider (score: 1): Author: "Bob Maser" <bmaser@tampabay.rr.com>; Date: Sun, 01 Mar 2009 11:54:27 -0800; If you are using a 0-1ma FS meter it is typically 1000 ohms per volt. This means that if you wanted a 2500V FS reading you would need 2500 * 1000 = 2,500,000 ohm in the meter multiplier string. I wou; /archives//html/Amps/2009-03/msg00021.html (7,955 bytes)
3. Re: [Amps] HV Divider (score: 1): Author: "KB0NLY" <kb0nly@mchsi.com>; Date: Sun, 1 Mar 2009 14:05:55 -0600; Actually I don't even have a panel meter for HV yet, I just have to get the output from the divider string down to 12v or less to provide the HV OK input to the Triode Board. I have to work on it som; /archives//html/Amps/2009-03/msg00022.html (10,457 bytes)
4. Re: [Amps] HV Divider (score: 1): Author: Ian White GM3SEK <gm3sek@ifwtech.co.uk>; Date: Sun, 1 Mar 2009 20:25:26 +0000; So you have a voltage divider with 10M in the top leg and two 100k resistors in parallel (for safety) at the bottom. So the no-load voltage at the divider tap has got to be 2380V x 50k / (10M + 50k); /archives//html/Amps/2009-03/msg00026.html (10,045 bytes)
5. Re: [Amps] HV Divider (score: 1): Author: Ian White GM3SEK <gm3sek@ifwtech.co.uk>; Date: Sun, 1 Mar 2009 20:36:40 +0000; Apparently no. Scott reports an open-circuit resistor from B-minus to ground. Having fixed that, he's now seeing 11.68V from the divider, which is within 1.4% of the expected value. Many thanks to wh; /archives//html/Amps/2009-03/msg00028.html (8,678 bytes)
6. Re: [Amps] HV Divider (score: 1): Author: "KB0NLY" <kb0nly@mchsi.com>; Date: Sun, 1 Mar 2009 14:43:31 -0600; Ian, Thanks for explaining that further. That formula is what I was looking for.. 2380V x 50k / (10M + 50k) = 11.84V I like to "know" how this stuff works, only way i can learn it for future use! The; /archives//html/Amps/2009-03/msg00029.html (8,292 bytes)
7. Re: [Amps] HV Divider (score: 1): Author: "KB0NLY" <kb0nly@mchsi.com>; Date: Sun, 1 Mar 2009 14:45:55 -0600; Unfortunately I already deleted the email, so my apologies as I can't quote who pointed me to that resistor!! But my friend you were spot on with that assessment. No handbook could have given me that; /archives//html/Amps/2009-03/msg00030.html (9,915 bytes)

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