Analogue moving coil meter range extension?
On Thursday, 21 September 2017 22:54:17 UTC+1, Foxs Mercantile wrote:
Sigh....
The simple answer is put a 62K 5% resistor in series with the meter.
It's read about 4% low (240 uA instead of 250 uA.)
You wanna get a little closer? put a 100K and a 150K in parallel.
Wanna make it adjustable? Put a 100K trimpot in parallel with a 180K
resistor.
This ain't rocket science folks.
It's also plainly noncompliant with the project requirements.
NT
|