We found this circuit in a 1967 American documentation. It is a transmitter for animal research, monitoring intestinal pressure. The operating frequency is 22 kHz.
This circuit is interesting for applications that are powered by batteries and need constant...
This circuit can be used to power 6, 9 or 12 V devices in your car. The maximum current is 1.5 A....
Found in a 1968 Mallory documentation, this circuit makes use of an integrated circuit of the...