LEDs can be dimmed but you’ll need to use PWM.
(Pulsed width modulation)
Basically varying the duty cycle with a pot is all that’s needed if you use a small microcontroller.
I’m happy to knock up a circuit and software if anyone is interested in having a go ?
Regards
Neil
Guide to replacing Signal meter bulbs with LED's
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Rascal
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lbcomms
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Re: Guide to replacing Signal meter bulbs with LED's
Not if it's done correctly. Being aware of good cable routing, using shielded cable, or using frequencies above what's audible are 3 methods that can be used alone or in combination depending on the circuit and application.