Found in a 1967 publication by General Electric, this control is intended for motors up to 2 A according to the SCR used. Higher current equivalent SCRs can be used.
Found in 90s Popular Electronics, this circuit fires an old camera flash of the type with a xenon...
This circuit is from the magazine La Radio per Tutti of 1926. The primary and secondary coil have...
Found in a Popular Electronics from the 90s, this digital probe uses common components....