This circuit was obtained from a 1980's QST magazine. The circuit can generate 1 to 15 MHz signals with 1 Vpp at 50 ohms load. Used transistors are still common today.
The integrated circuit used is no longer common today. The circuit is from Motorola's 1990 Linear...
This traditional oscillator uses two complementary transistors to produce low frequency signals....
This simple tester was found in a Popular Electronics from the 90s. The circuit is powered by two 9 V...