Hi.
Need to make a curcuit where i have this.
A Transistor that normaly is "open" when Base is feed with 5v over resistor,
When i put the BASE low, the transistor should start "flashing" around 2 times per second, (dont care if 1 or 5 times,,) Precission not matter..
I know from "old" days i could use a simple NAND Smith trigger to make that freqency, but cant remeber how,
Any clues in how to get this working ?
Need to make a curcuit where i have this.
A Transistor that normaly is "open" when Base is feed with 5v over resistor,
When i put the BASE low, the transistor should start "flashing" around 2 times per second, (dont care if 1 or 5 times,,) Precission not matter..
I know from "old" days i could use a simple NAND Smith trigger to make that freqency, but cant remeber how,
Any clues in how to get this working ?