This stage of IF to 455 kHz operates with voltages from 1.5 V. We find it in a 90s Popular Electronics. The integrated circuit is uncommon today.
This small power supply for low currents (5mA) is suitable for power low-power TTL experimental circuits....
This small Hartley oscillator uses an output transformer for transistors. The frequency is...
This circuit is from Motorola's 1990 Linear Databook. The circuit employs a component that is no...