We found this circuit in a 1998 publication. The circuit has controls for both frequency and signal strength. A lamp is used to monitor the signals. The supply is made with a voltage of 12 V.
The circuit shown in the figure produces pulses of high intensity light at a frequency that...
The transistor may be any general purpose, but the integrated transistor is not common today....
This circuit synthesizes a sinusoidal signal from logic pulses that can be obtained from an...