• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Selecting a LED

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A

Adriel

Member
Joined 2023
#1
Figure best to keep the questions separate and to the point, correct?

Another learning opportunity: understanding the purpose and how to specify a LED. Looking on Mouser I was overwhelmed with the plethora of choices. How does one choose?
Screen Shot 2023-02-06 at 9.07.44 PM.png


Thanks in advance! 🙂


PS A generous member provided a link and the webpage has a quote over the whole page, trippy how applicable it is "Failure is an option here. If things arent failing, you arent innovating enough.” Elon Musk
 
#5
kodabmx said:
Yup. In fact, R13 and the LED are "optional parts"... You can leave them out if you want - you just won't have an LED for the power 🙂
Click to expand...

Ah, I have heard sometimes used in the circuit for some purpose, forget now, do appreciate coming back and providing additional information. 😀 If serves no benefit other than an indicator, I myself choose green, being seems more logical and my favorite color. 😛
 
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#7
kodabmx said:
Green it is. 1k resistor will probably be fine. 5k1 if it's an "ultra bright" since they are blinding with even microamperes of current.
Click to expand...

Ha. Yes, I am light sensitive, largest bulb in the home is 40 watts equivalent at the sewing machine, rest 25 watts.

Maybe while I wait an hour plus for the doctor tomorrow, research nano lumens. 😛 (Being late night silly...)
 
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