Using a 4046 PLL we found this circuit in the December 1989 issue of Radio Electronics magazine. The circuit operates at 220kHz, but this frequency can be changed by changing C3.
This circuit is from Motorola documentation from the 70s. The transistors support modern...
This circuit is from the 1983 Intersil Databook. The ADC0801 and 0804 are low-cost AD converters. They...
This 5 W transistor amplifier for the car was found in an English documentation from 1969. The...