Using the LM383 this circuit was found in a Popular Electronics from the 90s. The source must be 14V and the integrated circuits must have good heat sinks.
This circuit can be used with the CIR12053 receiver or with others shown in this section of the...
When the input of this circuit goes to high level, the LEDs start to flash alternately. The...
This circuit is from a 1965 Radio Electronics. The triggering transformer generates high voltage...