Using transistors at the time, this circuit was found in a 1970s documentation. Transistors support modern equivalents for 2A currents at least in the case of the output transistors.
We find this vibrato configuration with transistors in a 1987 documentation. The components are still...
This oscillator with the 4049 can generate signals up to about 14 MHz according to the article in the...
Found in a 90s Popular Electronics, this circuit provides sinusoidal signals at frequencies given by the...