Found in an older Radio Craft, this circuit covers the aerial band from 118 to 136 MHz. No information is given about the coils.
This circuit was found in an Electronics World of 1968. It can be applied to any modern triac and...
This circuit is from a documentation from the 70s. The transistors are types of germanium of the...
Obtained from a 1996 documentation, this circuit uses common components and has a voltage gain of 200...