We found the circuit of this Japanese transistorized commercial receiver in a documentation from the 1960s. It is a radio for the medium wave range with 6 transistors and 9 V power.
This amplifier was obtained from the CA3140 datasheet, an operational amplifier with JFET at the...
This circuit is from LinearTechnology Applications of 1997. The circuit uses components of the...
This circuit was found in Motorola's 1968 documentation. It can be built on current equivalent...