The figure shows how to associate flip-flops in a shift register to obtain a lower frequency sinusoidal signal. The circuit is from a Radio Electronics from November 1976.
The output transistors of this circuit can be TIP31 and TIP32. The other transistors admit...
This oscillator with crystal for overtone operation was found in an old American documentation. The coil...
Old multimeters used a 22.5 V battery for high resistance measurements. If you have one, you...