what resistor to use for transistor base? Doing a touch circuit with 2 transistors Answered
I am doing a touch switch which will be activated when the touch plate is touch, however i do not know why is the resistor used is 100k ohms. As i will be using another surface mounted transistor, how do i know what value of resistor to use?
i have found a transistor base resistor calculator online: http://kaizerpowerelectronics.dk/calculators/transistor-base-resistor-calculator/
i will be using the FZT651TA, NPN Bipolar Transistor for the circuit.
Can somebody tell me what resistor to use for this transistor?
Thanks in advance