This amplifier is from Motorola documentation from the 70s. The circuit uses transistors from the time, which are not common today, such as the SE7005 or 2N3916 at the output.
This circuit decodes FSK signals with frequencies of 1070 and 1270 Hz and can be used in data...
Found in Motorola's 1968 power circuit manual, this circuit has a high input voltage and no...
We found this circuit in a Popular Electronics from the 90's. The circuit uses three SCRs to...