Electronic Timers, Delays, Object Counters, Tachometers, Event Counters.
Astable Multivibrator with 555 Timer
This is a demo of the popular 555 timer. you can try out the project on this page by a javascript simulation. Press the Red […]
Timers-Counters
1 Hz or 1 PPS Crystal Clock Base
The CD4020BC, CD4060BC are 14-stage ripple carry binary counters, and the CD4040BC is a 12-stage ripple carry binary counter. The counters are advanced one count […]
Multiplexed Presettable Timer with ICM7217
This was a attempt to make a Sequential Timer with ICM7217 of Intersil, even though it worked well, it was not developed beyond the prototype […]
Analog Blind Dial On Delay Timer
It is called analog dial timer as it has no digital display, but the chip is digital it is CD4541. It is Mains operated, you […]
Two Stage Sequential Timer
This is an example of a cascaded or sequential timer, here two CD4541 are forming a two stage timer. You can add more in a […]
Timer and Counter Modules
U1 CD4541 is a Timer with Long Duration Ability. This timer is started by a low pulse from earlier circuit, when the temperature goes above […]
Presettable Up-Down Counter Timer
When i had put the near Obsolete digital circuits online in the late nineties. One person who works in a public institution in the usa, […]