This circuit for car engine spot adjustment was found in an 80's Radio Electronics. The circuit makes use of a xenon lamp and the pulse transformer must have a turn ratio of 1:50.
This crowbar circuit for alternating current causes a quick fuse to blow when the load current...
This circuit was obtained from a 1978 Practical Wireless. It causes an LED to flash at a frequency that...
The output voltage of this circuit, which can regulate the current in a load between 0 and 1 A,...