Re: First Radio Build - 12V HT system
Assuming all pots are either log or linear law (there are other laws, some quite exotic, but you are unlikely to come across them) :
Set the pot spindle to the mechanical mid postion.
Measure the resistance between the wiper (middle terminal ) and each of the outside 2 terminals.
If the 2 resistances are about the same (and equal to half the nominal resistance of the pot) then it's a linear law one. If they are wildly different it's log law.
[Crossed with MS660]
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