We found this automotive regulator circuit for alternators in a 1965 Motorola manual. The power transistor must have a heatsink.
In the figure we have an anti-ring or debouncer circuit with 555. The duration of the pulse is...
One of the application circuits we gave with the 4013 in this circuit bank was a bistable switch...
This analog volt-ammeter was found in an Electronics World of 1968. It makes use of a 0-1 mA...