[Amps] plate voltage meter shunt
Carl
km1h at jeremy.mv.com
Sun Nov 4 07:27:05 EST 2012
The string of 10 1M 1/4W Chinese carbon resistors on the Harbach SB-220
board are a prime example of a poor choice.
Carl
KM1H
----- Original Message -----
From: "Jim W7RY" <w7ry at centurytel.net>
To: "Carl" <km1h at jeremy.mv.com>; "Douglas Johnson" <w9iix1 at yahoo.com>;
"AMPS" <amps at contesting.com>
Sent: Sunday, November 04, 2012 12:52 AM
Subject: Re: [Amps] plate voltage meter shunt
> Yes they do. I used one in my Drake L4B. The stock string had an
> intermittently open resistor causing intermittent plate voltage reading.
>
> 73
> Jim W7RY
>
>
> -----Original Message-----
> From: Carl
> Sent: Saturday, November 03, 2012 2:46 PM
> To: Douglas Johnson ; AMPS
> Subject: Re: [Amps] plate voltage meter shunt
>
> Mouser carries Ohmite flatpak HV resistors; Ive been using them to replace
> the old carbons in many amps.
>
> Carl
> KM1H
>
>
> ----- Original Message -----
> From: "Douglas Johnson" <w9iix1 at yahoo.com>
> To: "AMPS" <amps at contesting.com>
> Sent: Saturday, November 03, 2012 5:15 PM
> Subject: [Amps] plate voltage meter shunt
>
>
> I am installing a meter to measure plate voltage 1-5000v@ 1a dc, the meter
> has a 1ma fs rating. the serial resistance I have made up in the past has
> been 3 watt metal film resistors in series. since they can only rated for
> 200v per resistor it takes many to do the job. Can some other resistor
> type
> with a higher rating be used in a safe manner for this purpose?...tnx,
> Doug,w9iix
> _______________________________________________
> Amps mailing list
> Amps at contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>
>
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 10.0.1427 / Virus Database: 2441/5371 - Release Date: 11/03/12
>
>
> _______________________________________________
> Amps mailing list
> Amps at contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>
>
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 10.0.1427 / Virus Database: 2441/5371 - Release Date: 11/03/12
>
More information about the Amps
mailing list