japanjot
New Member
1) the LM3915 is built to drive LEDs not a transistor. Change R2 from 100k to 10k or maybe 1k to get the transistor to turn off.
2)I do not know what your VCC is. You have VCC across 3 LEDs with no current limit resistor. This is a bad idea. You need a resistor to limit current in the LEDs.
I would be using regulated 9.8-10v from 12 v source so i guess i wont b requiring resistor,
And ok would try 10k resistor value thnx
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