This transistor class B 5 W amplifier was found in a 1969 Mullard documentation. The transistors are from that time, and modern equivalents may eventually be used.
This circuit found in a 1974 English magazine was originally designed to automatically trigger a slide...
This shield circuit was found in the Texas Instruments Linear Circuits Applications of 1986. The...
With this converter it is possible to receive signals from the 220 MHz band on a 144 MHz receiver....