DiscoverCircuits.com, has 45,000+ electronic circuits, cross-referenced into 500+ categories.
We have searched the web to help you find quick solutions & design ideas.
All materials
and content contained on this page are the exclusive intellectual property of
Andrew R.
Morris and
may not be copied, reproduced, distributed or displayed without his express written
permission.
This two-tone generator includes 3 ICs NE555
Astable Multivibrators. You can vary the duration of each tone by changing the 10k
resistor or 100MF capacitor at IC1 or changing resistors and capacitors at IC1/2 for
higher or lower tone.