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.
Any operational amplifier can be used in this circuit. The 741 is the most common. Power supply must...
This circuit was found in the February 1993 Radio Electronics magazine. The frequency depends on...
This circuit was found in an article about the 555 in the November 1992 Radio Electronics...