Voltage Reference mounting for "23A" battery
thingiverse
If you need to check the precision of your voltmeter or calibrate your oscilloscope this little precision voltage reference is perfect. You find it on Ebay, Amazon, Aliexpress and so on. I had a slight problem buying the battery intended for it and used a for me easier to find "23A" size battery. To make this slightly smaller battery stay in place I did this mounting plate. Just bend the battery connections out a bit to get to the right distance for the smaller battery. I did not make a complete housing, just a mounting plate, since you anyway need to get to the power switch, the connectors and the jumpers to change the voltage.
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