square wave oscillator

6,038

This is a simple square wave oscillator using a 4011 NAND chip, you could of course use the TTL equivalent as well.

Adjusting the resistor values will adjust the mark/space ratio of the square wave output

Schematic

Sqaure Wave Oscillator
Sqaure Wave Oscillator

Parts List

QTY  PART-REFS           VALUE
---  ---------           -----
Resistors
---------
1    R1                  100k
1    R2                  22k
Capacitors
----------
1    C1                  10nF
Integrated Circuits
-------------------
1    U1                  4011
Diodes
------
2    D1,D2               1N4148

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