loading

Step 3: The Voltage Regulator

To power the 555, you can use the Snap Circuits B5 block (it is also called a 9 volt Holder and Switch). The advantage to using this block is you can connect a standard 9 volt battery to the block and it will deliver a reliable 5 volts to the 555 through the L7805 voltage regulator circuit (see circuit schematic). The B5 also has two 5 volt outputs--one to power the Theremin and one that you can use to power another device. HINT: since the output of the 555 in Astable mode is a square wave you could use the output for Pulse Width Modulation (PWM) to control a device such as a motor.
<p>Note that the Snap Circuits Extreme SC-750 no longer contains the 8 pin IC socket block so you will need to purchase the additional part.</p>
who will use this anyway?
Makers, people who want to learn electronics, K-12 teachers, post-secondary educators, scientists, technologists, engineers, mathematicians...

About This Instructable

14,542views

69favorites

License:

Bio: You can try my projects AT YOUR OWN RISK. There's infinite ways to damage or destroy persons and property. I can't think of ... More »
More by KRA5H:Discover Electronics With Snap Circuits Arcade (A Review) Variable Speed Fan With Snap Circuits, Kano Computer Blink Snap Circuits LED With Kano Computer 
Add instructable to: