The phasor is the ray weapon that we see in many science-fiction films. The characteristic sound can be imitated with this circuit found in Radio Electronics of the years 90.
Published in an old Popular Electronics, this circuit makes use of components that are still...
Suggested for the control of photographic enlargers, this 1967 General Electric circuit uses still...
Found in old documentation, this oscillator operates with high voltage. The diode must be of the...