[Amps] Simpson Panel Mtr Wanted

Radio WC6W wc6w_amps at yahoo.com
Wed Feb 26 11:28:32 EST 2014


Hi Jim,
    Most high current meters you describe are designed for use with 50mV shunts.

    That corresponds to a 5mA movement with 10 ohms internal resistance.

73 & Good morning,
    Marv WC6W

http://qsl.net/wc6w/
 
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<snip>
 
 On a related subject, does anyone know what the base
 movement is on high
 current Simpson panel meters, e.g., 10A, 30A, etc.? 
 The DC voltmeters are
 usually a 0-1 mADC movement with a series resistor, but I
 don't know what's
 inside the DC current meters.
 
 Tnx and 73,
 
 Jim W8ZR
 
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