Hi all,
New to the board. I have a question per the thread title.
I am attempting to fabricate a test light for use in testing automotive
distributor components, eg, coil, ICM, etc. It involves an LED w/
built in resistor. Exactly, the LED in question is RadioShack
#276-270, which is rated for 12V and 20mA.
The question is, how can this LED be tested before its fabricated
into the test light? It has a red-insulated wire (+) and a black-insulated
wire (-). Can I simply put it directly across the 12V automobile
battery w/ red wire to battery positive terminal and black wire
to ground? I've tried resistance testing and continuity testing w/
a multi-meter but these were ineffective most likely due to the presence
of the built-in resistor.
Thanks for your input.
New to the board. I have a question per the thread title.
I am attempting to fabricate a test light for use in testing automotive
distributor components, eg, coil, ICM, etc. It involves an LED w/
built in resistor. Exactly, the LED in question is RadioShack
#276-270, which is rated for 12V and 20mA.
The question is, how can this LED be tested before its fabricated
into the test light? It has a red-insulated wire (+) and a black-insulated
wire (-). Can I simply put it directly across the 12V automobile
battery w/ red wire to battery positive terminal and black wire
to ground? I've tried resistance testing and continuity testing w/
a multi-meter but these were ineffective most likely due to the presence
of the built-in resistor.
Thanks for your input.