I have a project in mind where I want the display to be one or two large analog panel meters. They'll be driven by a pwm from a uC.
Anybody have advice on how to source these components?
I see some handsome NOS Simpson analog DC milliammeters on Ebay, but they are in the $20+ range, going up to some pretty high numbers.
Legit supplies of new meters seem to be asking on the order of $90+.
I did find some decent (but not fantastic) looking meters on Aliexpress, but mostly in inappropriate ranges or set up as voltmeters. ex:
https://www.aliexpress.com/item/DC-0-5A-Mini-Pocket-Amperimetro-Analogico-Analog-Ammeter-Panel-meter-Tester-amperemeter-For-Experiment-Home/32601040112.htmlMy technical question is am I right to presume that if I buy a meter set up as a voltmeter that it will be easy and obvious to remove an input resistor to make it work like a naked ammeter? Similarly, if I buy a high current ammeter, will there be an easy to remove shunt? Or, are these sorts of things integrated into the inner-workings somehow such that you are basically stuck with the meter as configured?
Related to that, does anybody sell the naked movement, perhaps with a blank card, along with a datasheet that tells the movement's actual specs?