This kit is perfect for GCSE students needing to use a 555 timer in its astable mode, where it produces a square wave output. The frequency of which is adjustable via the variable resistor. The board has a choice of two outputs. The logic output can be used to drive another IC or a speaker can be connected so the tone is heard (e.g. a door bell).

The push button switch connects to the reset line such that the IC is only active when the button is pressed.

Features:

• The 555 Timer Astable (Tone Generator) Kit produces a square wave output.
• The frequency of the aquare wave is adjustable via the variable resistor.

Contents:

• 1 x 555 Timer IC.
• 1 x 8 Pin IC Holder.
• 1 x 3.3KΩ Resistor.
• 1 x 10KΩ Resistor.
• 1 x 47KΩ Potentiometer.
• 2 x 10nF Ceramic Capacitors.
• 1 x BC547 NPN Transistor.
• 1 x Push To Make Switch.
• 1 x PP3 Clip Lead.
• 1 x 3AA Battery Holder.
• 0.5m Connecting Wire
• 1 x Tone Generator PCB

Dimensions:

• PCB Length: 40mm.
• PCB Width: 40mm.

Requires:

• 3 x AA Batteries.
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Note:

• This kit requires soldering.
• Requires x 3 x AA Batteries. and depending upon desired use a , both available separately.