This sensitive Japanese mid-wave receiver from the 1960s has an output power of 45 mW and is powered by 3 batteries (4.5 V). The circuit is superheterodyne with an IF of 455 kHz.
This circuit was found in a 1967s Motorola documentation. The circuit regulates the voltage of an...
This 9-bit DAC circuit was found in the RCA CMOS integrated circuits manual of the 1970s. The...
The purpose of this circuit is to cut off the high voltage when the bias voltage fails. The...