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.
Figure below shows the basic configuration of a ringoscillator using CMOS Iogic. The frequency...
This variable power supply uses common components and can supply a current up to 1 A. The...
If you have a common analog multimeter, you can increase its input resistance in the measurement of...