This two-digit timer was found in the 1983 Special Projects issue of Radio Electronics magazine. The circuit uses components that can still be found today.
We found this protection circuit for power supplies with the 12 V power supply itself in a 1982...
We found this time base of 0.1 to 90 seconds in a circuit manual from the 90s. The single-use...
This circuit can be used with the CIR12053 receiver or with others shown in this section of the...