This circuit can flash for up to 30 months using alkaline batteries as shown in the table next to the diagram. The circuit is from a Radio Electronics from January 1992.
Although not using transformers, this amplifier may have difficulty mounting if the original...
This circuit is from a Popular Electronics from 1993. The magazine is no longer printed, but the...
We found this circuit in an old documentation, but it can be easily assembled, as it is based on...