vladimirstanoev's channel

@Fredzislaw100, on your schema has 100R, but on the BilelGharbi's schema has 100K. On your schema has also 2x750R, but on the BilelGharbi's schema has 2x750K... :)

@81lmc7101 I agree with you, but 5mA is small because the calculations are made for 20mA. With L7/220uH should be 50mA and then (using R1) is easy to fix at 20mA :)

imageshack.us/f/40/current4ledseries.png

@81lmc7101 thanks for the detailed answers:) “Not 2, not 3, not 4, but more” frequencies seems too much for 4LEDs…

@Fredzislaw100 It 's sure that the scheme will not work with the "same leds, same switches" :) See one answer to the question "how does it work?":

imageshack.us/f/202/3ledparall­el.png

What do you think?