A friend of mine asked if I couldent help him convert a 0-50 Hz squarewave signal
to 0-400 Hz. The application is to adapt his RPM display 0-400 hz to 0-50 Hz.
The solution doesnt haveto be 100% exact.

I am not sure howto do this. The only idea I have so far is to use a PIC and measure
the 0-50 Hz signal then multiply the result by 8 and output the result somehow as
a squarewave signal...

Any suggestions most welcome :-)

/PJ

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