Electric Meters used in Wireless Equipment

 

 


Weston Model 151 Ammeter
1913


Weston Model 151 Voltmeter
1913


Weston Ammeter
1898


Weston Model 24 Ammeter
1901


Weston Model 355 Frequency Meter
1913


Westinghouse Type SX Ammeter
c. 1900


Norton Voltmeter


Norton Ammeter

 
 
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