Tim's 7555 Signal Injector
There is not much to say about this little tool.
It started as a challenge made by Richard at "Learn Electronics Repair"
It uses a CR425 battery to power a 7555 timer. (notice the 7, The timer will run with low voltage 3v).
The frequency like most 555 Timers can be changed by using different value resistors and capacitor.
The original use is to inject a signal (noise) into a circuit.
Because I have used a 7555 timer I am able to lower the frequency very low to inject slow pulses to drive logic circuits.
The videos show it all.
Tim's 7555 Signal Injector
*PCBWay community is a sharing platform. We are not responsible for any design issues and parameter issues (board thickness, surface finish, etc.) you choose.
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