This Japanese radio is from the 60s, presenting excellent sensitivity and an output power of 100mW with 6 V power from ordinary batteries. The circuit is of the superheterodyne type.
This circuit can test quartz crystals from 3.5 to 90 MHz. Its supply can be made with voltages from 8...
This divider by 9 is synchronized because it is implemented based on TTL or CMOS logic according to the...
This circuit was released in an Electronics Newsletter from June 1995. It uses a 10-channel...