One of my first projects and my first transistor project. This is what is left of my rain detector, it had a single transistor and a relay. It was built on a sample composite board from a lumber company. Built early 1969.
One of my first projects and my first transistor project. This is what is left of my rain
detector, it had a single transistor and a relay. It was built on a sample composite board
from a lumber company. Built early 1969.