jimmythefool
New Member
Hi all
I had a circuit that powered some IR leds directly, but redesigned it with the O/P (pin 3) going into the base of an npn transistor, via a 2k2 resistor. For some reason, the frequency 'dissapears' on the base end of the 2k2.. Any Ideas?
Thanks
Jim
I had a circuit that powered some IR leds directly, but redesigned it with the O/P (pin 3) going into the base of an npn transistor, via a 2k2 resistor. For some reason, the frequency 'dissapears' on the base end of the 2k2.. Any Ideas?
Thanks
Jim