Re: Simple Op-Amp Tester

Posted by tabbycat on
URL: http://guitar-fx-layouts.238.s1.nabble.com/Simple-Op-Amp-Tester-tp27924p30508.html

Ciaran Haslett wrote

The 300Ω is the current limiting resistor for each LED.  Experiment with different values to taste.

Hope this is of use to someone.

Now VERIFIED

many thanks for these layouts, ciaran. am just getting myself together re diy testing kit. fet, opamp, etc.

i've only got 330r or 2 x 150r in series for each of the various 300r. using the 330r would save me stiching reistors together (which i would prefer to avoid). am guessing they only effect the brightness of the led rather than being critical? 330r within 10% of 300r.