[Amps] Anyone know what the specs are for the two panel meters on Amp Supply LK450-500-550 series?

gudguyham at aol.com gudguyham at aol.com
Tue Oct 31 22:16:58 EDT 2023


There are 1ma movements with about a resistance of around 30 or so ohms.  Full scale voltage is around 30mv.  You can reshunt any meter to make it work.


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On Tuesday, October 31, 2023, 9:02 PM, wb0gaz via Amps <amps at contesting.com> wrote:

 Are the panel meters (plate current, and grid current/HV) considered a milli- or micro-amp meter or a voltmeter? No info in the manuals. They are (per the schematic) both effectively across sub-ohm shunt resistors (grid current is across the sub-ohm shunt resistor to ground; plate current is across the next-up sub-ohm resistor towards the HV PS negative terminal.)

Thanks for any suggestion/info

Dave
  
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