The power transistors from this 1999 source must be mounted on excellent heat sinks. The circuit is suitable for supplying automotive devices up to 30 A. The 13.8 V output is set to P1.
This small transmitter sends signals to the 7 MHz band, but can be modified to operate at other...
We found this circuit in a European publication from the 1970s. The transistors are made of...
This simple indicator is for 12 batteries, just adjust the trigger point in the trimpot. The...