i want ask obout ultrasonic receiver switchs cicrcuits. what is the function ic 3140? and i search sl 100 transistor but i not found it. can you help me to find transistor type to change the sl 100 transistor?
i want ask obout ultrasonic receiver switchs cicrcuits. what is the function ic 3140? and i search sl 100 transistor but i not found it. can you help me to find transistor type to change the sl 100 transistor?