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## Re: [Amps] What's wrong here- dropping resistor for DC meter?

 To: Ed Heimbach , "Amps@contesting.com" Re: [Amps] What's wrong here- dropping resistor for DC meter? "Fuqua, Bill L" Sat, 9 Jul 2011 08:59:20 -0400 mailto:amps@contesting.com>
 ```Was the meter linear to start with? Did you check it with a variable DC supply and another meter? How many resistors and what types are in the string? What is theinternal resistance of the meter? Also, your meter is interesting in that it has a 1 to 5 volt movement and not a 0 to 5 volt. 73 bill wa4lav ________________________________________ From: amps-bounces@contesting.com [amps-bounces@contesting.com] On Behalf Of Ed Heimbach [supermechanic18360@yahoo.com] Sent: Saturday, July 09, 2011 8:06 AM To: Amps@contesting.com Subject: [Amps] What's wrong here- dropping resistor for DC meter? Want to meter HV out. Power supply variable from 0 through 4.5 kv dc Have 1 through 5 v DC movement. I built dropping resistor string to multiply meter by 1000X. Meter now has a non-linear response. I.E., 1 volt position corresponds to 1000 volts, 3.25 volt on meter scale equals 4.5kv. It would be nice if my max. volts (4.5 k) corresponded with the 4.5 mark on the scale card. Easy way out would be to jiggle resistor values to get mid point on scale (2.5 volts) to correspond with 2.5 kv, and then make new meter scale to agree with indicating needle. Any better solutions? 73 ab3ht _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps ```
 Current Thread [Amps] What's wrong here- dropping resistor for DC meter?, Ed Heimbach Re: [Amps] What's wrong here- dropping resistor for DC meter?, Ron Youvan Re: [Amps] What's wrong here- dropping resistor for DC meter?, Fuqua, Bill L <= Re: [Amps] What's wrong here- dropping resistor for DC meter?, Dr. David Kirkby Re: [Amps] What's wrong here- dropping resistor for DC meter?, k7fm Re: [Amps] What's wrong here- dropping resistor for DC meter?, Dr. David Kirkby Re: [Amps] What's wrong here- dropping resistor for DC meter?, Robert Groh Re: [Amps] What's wrong here- dropping resistor for DC meter?, Dr. David Kirkby