This small signal amplifier circuit was found in Motorola's 1969 documentation. The FET and the transistor can be of any type and is battery powered since the consumption is very low.
This triac control shield uses an opto-diac to control a triac. The circuit is optimized for the...
This circuit, which we found in a 1997 documentation, generates powerful signals around 1 MHz. Its...
This FM transmitter circuit was found in a Japanese publication in 1975. Equivalent transistors can be...