555 Timer Astable (Tone Generator) Kit


555 Timer Astable (Tone Generator) Kit

Product no.: 2117

In stock

5.20
Price incl. VAT, plus delivery


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.
 
This kit contains:
 
1 x 555 timer IC
1 x 8 pin IC holder
1 x 3.3Kohm resistor
1 x 10Kohm resistor
1 x 47Kohm 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
PCB dimensions: 40mm x 40mm.
 
Requires x 3 AA batteries and depending upon desired use a speaker
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