RK Education Transistor Switch Projects

<P>This project introduces the <STRONG>transistor switch</STRONG> and is an excellent first electronics/systems and control <STRONG>project for students</STRONG>. </P><P><a href="/pdf/70-6024_transistor_switch_nightlight.pdf"><B>Comprehensive teacher notes are available here.</B></a></P><P>The project is also excellent for <STRONG>GCSE students</STRONG> as it has been designed with <STRONG>KS4 curriculums</STRONG> in mind. It is a very versatile project and can be used as a moisture sensor, temperature sensor and light sensor. The project has been designed to allow differentiation and has space for up to 5 outputs and a range of inputs including variable resistors.<BR>Downloadable project notes are available for these kits: <A class=bluelink href="/pdf/70-6024_transistor_switch_nightlight.pdf"><STRONG>Please click here</STRONG></P>
  • A number of different solutions are possible
  • Can be used with an LDR, thermistor or moisture sensor
  • Battery-powered
  • PCB has space for up to five outputs
  • Clear silkscreen text has been used to make construction simpler
  • Professional double-sided PCB pre-drilled with silkscreen and solder-resist
  • A training system, 70-6046, is available to help aid teaching and learning with this project and to help students to arrive at their final solution
  • 2 versions available for maximum flexibility
  • Available with or without temperature sensor
  • Empty PCBs are available separately, order code 70-9040
  • Suitable for Key Stages 2, 3 & 4 (ages 7 to 16)

PCB design may vary from that shown.

Description Image Product Buy Qty Pricing (Ex VAT) Type Power Frequency Range Soldering
RK Education Transistor Switch Project - Temperature Sensor
RK Education Transistor Switch Project - Temperature Sensor
Standard range
Order code: 70-6025
MPN: 70-6025

Out of stockStd lead time 9 months
1+ £2.31
Transistor switch project N/A N/A N/A Yes
RK Education Transistor Switch Project - PCB
RK Education Transistor Switch Project - PCB
Standard range
Order code: 70-9040
MPN: 70-6024A

Out of stockBack-order availability date - 03/04/2025
1+ £1.00
Transistor switch project N/A N/A N/A Yes
Kits contain:
QuantityDescriptionOrder code
1Transistor switch projects (70-6024/5) PCB70-9040
11K 0.25W carbon film resistor62-0373
1270R 0.25W carbon film resistor62-0359
1TMPSA13 Darlington NPN 30V 0.5A TO-9281-0143
1SPDT ultraminiature slide switch76-0306
1Battery clip PP3 - end entry18-0585
15mm red LED55-1790
70-6024 only:
147K 0.25W carbon film resistor62-0410
70-6025 only:
1NTC thermistor - 100K 10% 3.5mm pitch61-0420
1100K miniature carbon preset67-0418


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