- Oct 28, 2017
- Reaction score
A wittle gusty thunderstorm is paying me a visit. Been a while since I heard the rumble nearby.
IIRC all LED's operate at around the same forward voltage, the difference was always in the limiting resistors as to how much juice they could take.Need new pilot LED for tuner.
5mm pilot LED failed open.
Original voltage of LED unknown.
Voltage across failed LED measures 9.5V.
390 ohm current limiting resistor in series.
5mm LED avallable in 3V, 5V, 12V.
Could get one of each and start with highest.
Try until correct brightness without burning out.
Thinking 5mm 3V replacement LED should work.
LED are current driven, not voltage driven.
Current is same everywhere in series circuit.