Circuits and modules for GCSE Electronic Products
Pro/Desktop Drawings Zip File ©Christopher Leigh
Light Dependent Resistor
A standard ORP12 LDR Rapid part no 58-0132 is more modern version.  Zip file with all components is prodesktop2.zip  Download the zip file or grab the following files:
orp12.des is the main one.
top.des
PCB Mounting Push Switch
A smart pcb mounting spst push to make switch Rapid part no 78-0260.  It can take a clip on cap in black or white.  Zip file with all components is prodesktop2.zip  Download the zip file or grab the following files:
redpressswitch.des is the main one.
redtop.des
whiteinside.des
metallegs.des
PCB Mounting Slide Switch
A miniature spdt slide switch Rapid part no 76-0265.  Zip file with all components is prodesktop2.zip  Download the zip file or grab the following files:
metal shroud.des is the main one.
switch insert.des
3x4 Keypad
A membrane keypad with digits and the characters * and #.  Rapid part no 78-0305.  The buttons are connected in rows and columns in a matrix and can be read easily using a PICAXE chip or any other microcontroller.  Zip file with all components is prodesktop2.zip  Download the zip file or grab the following files:
3x4keymatrix.des is the main one.
body.des
buttons.des
Electret Microphone
A simple microphone with built in FET amplifier which produces an output of around 30mV.  Rapid part no 35-0192.  Zip file with all components is prodesktop2.zip  Download the zip file or grab the following files:
electret.des is the main one.
blacktop.des
PCB Mounting Piezo Buzzer
A simple piezo buzzer Rapid part no 35-0215.  Zip file with all components is prodesktop2.zip  Download the zip file or grab the following file:
Piezo.des.
Chassis Mounting Electromagnetic Buzzer
A chassis mounting buzzer available in cream or black.  Rapid part no 35-0100 or similar.  Zip file with all components is prodesktop2.zip  Download the zip file or grab the following file:
Buzzer.des.
66mm (2.5inch) 64R Loudspeaker
A cheapish 300mW 64R loudspeaker in 66mm size.  Zip file with all components is prodesktop2.zip  Download the zip file or grab the following files:
loudspeaker.des is the main one.
blackbit.des.
metalbit.des.