This preamplifier for the 6 or 2-meter range was obtained from an American documentation from the 1980s. FETs can be modern equivalents and no information about the coils is given.
ts component datasheet which can supply currents of 1 A (1.125 V and 400 mA (1.2 V). The inputs can...
We found this circuit in a 1982 publication. This transmitter sends its signal to any AM radio...
This simple circuit was suggested by the Electronics Handbook Volume XIII 1993. LED D1 emits light for...