jjm electronics

Browse Products


Circuit boards are grouped according to topic / syllabus section.
For more details of boards within any group, click on image to open a full page description.

Analogue Electronics

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Grampian Op Amp : build all op amp circuits simply & quickly
+/- 12V Regulator : dual rail supply for op amps
Wheatstone Bridge : for balanced & unbalanced bridge circuits

Optoelectronics

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Variable Voltage Source : simplifies collection of data
 
P-N Junction Diode : with protection resistor
 
LED : with protection resistor
 
Photodiode : with protection resistor
 

RGC Electronics Boards

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Logic Gates Board : simple, self contained testing of AND, OR, NOT gates
 
NOT Gate set : for building clock pulse generator
 
Counter Board : contains all subsystems for building counter/decoder/display
 
5V Regulator : add-on regulator board giving suitable power supply

Lochaber Logic Tutor

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A comprehensive combinational logic tutor with a wide selection of gates, input switches and logic indicators.

Colour Mixing Box
 
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Designed for use by pupils working individually or in small groups to investigate colour mixing, colour perception and shadows.

Input / Output Devices

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Light Dependent Resistor
Thermistor
Lampholder
LEDs
Buzzer
Relay
Motor
7 Segment Display

Illumination and Communication kit

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Full I&C pupil kit

LED Investigations Board

Light Sensor Board 

Spare LEDs and Fibres 

 

Angus Systems Board
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Robust circuit board for introductory work on systems electronics.
Uses 4mm connectors throughout.
 

Capacitance

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Charge/Discharge Circuit : investigate voltage and current graphs for capacitor charge and discharge
Constant Current Circuit : investigate Q-V relationship and measure capacitance
Rectifier/Smoothing Circuit: demonstrate rectification and smoothing

Amplifiers
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Simple Amplifier : to illustrate amplifier action and voltage gain
 
Power Amplifier : audio amplifier to illustrate power gain
 
Simple Amplifier : to illustrate amplifier action and voltage gain
 
Power Amplifier : audio amplifier to illustrate power gain

Transistor Boards
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A very clear and robust set for building transistor circuits.  Addresses all outcomes at National 5 and Higher.
 
NPN and MOSFET transistor boards
 
Component Panels : screw mount to main boards to build circuits.
Built circuit matches circuit diagram
 

Potential Divider Set
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Potential Divider base board to which Component Panels screw mount to build circuits, matching circuit diagram.
 
Suitable for National 5 and Higher.
 

Teaching Chip Boards

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Teaching Chip Project Board : flexible resource using overlay cards for each of the four teaching chips
 
Resistance and Length and Resistance and Width boards for investigation of Chip 1
 
Chip 4 (Ring Oscillator) Board : simplifies setting up of ring oscillator

Optic Communication Set
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Experiment with audio communication link using light in air or fibre.
Set includes Transmitter and Receiver boards, 1 metre optic fibre and 3.5mm input jack lead.
Longer fibre available if required.

Basic Components

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switch
bulbholder
potentiometer
4mm and 2mm leads
spares and repairs