This circuit was obtained from an 80's Electronic Engineering. The circuit detects ice formation by triggering a warning light. The operational amplifier is of the time.
Figure bellow shows how the flip-flops of a 4027 can be connected to perform a divide-by-5 counter [odd...
The basis of this 90s circuit is a CA3130 operational amplifier. The circuit does not need a...
With the indicated components, this circuit oscillates at 1232 Hz. Consider the tolerance of the...