jjm electronics

Input / Output Devices


A range of board mounted components covering the input and output devices usually featured in introductory electronics courses. 
Ideal for Standard Grade and Intermediate Physics.

LDR

An ORP12 Light Dependent Resistor mounted on board with 4mm terminals.

Order Code: 06-012  Price: £6.65

ldr.jpg

THERMISTOR

An ntc disc thermistor mounted on board with 4mm terminals.  Nominal resistance is 1000 ohms at room temperature, so warming by hand gives a rapid fall in reading on the 2000 ohm range of an ohmmeter.

Order Code: 06-013  Price: £5.95

thermistor2.jpg

BULBHOLDER

An MES lampholder mounted on board with symbol and 4mm sockets.

Order Code: 06-001  Price: £5.35

bulbholder.jpg

LED (330R for 3V to 8V)

8mm red LED with 330R series resistor suitable for operation from 3V to 8V.
 
Yellow or green LED can be supplied if specified on order.

Order Code: 06-003  Price: £5.25

led.jpg

LED (1k for 6V to 20V)

8mm red LED with 1k series resistor suitable for operation from 6V to 20V.
 
Yellow or green LED can be supplied if specified on order.

Order Code: 06-004  Price: £5.25

led.jpg

MOTOR

A very high quality motor mounted on board with symbol and 4mm terminals.

This motor is ideal for school use - it will turn convincingly when powered from a 1.5V cell, but is rated up to 12V and so is unlikely to be damaged in normal pupil use.

Low current requirements make this motor ideal for use with solar cells.

Order Code: 06-014  Price: £9.60

motor.jpg

RELAY

A high quality single pole changeover relay mounted on board with symbol.

  • transparent case so switching action can be clearly seen
  • 4.5V to 7.5V operation
  • 4mm connections to coil
  • push-on 3-way connection for switch contacts
  • spare 3-way connector supplied - allows loads to be prewired and plugged in when required

Order Code: 06-015  Price: £9.85

relay.jpg

BUZZER

A high quality piezo buzzer mounted on board with symbol.
Very flexible power supply requirements - though designed for 5V use, the buzzer sounds convincingly when powered by a 1.5V cell and can be used with supplies up to 12V, so is unlikely to be burned out in normal class use.
Connection via 4mm sockets.
 

Order Code: 06-016  Price: £7.30

buzzer.jpg

7-SEGMENT DISPLAY

A large, bright 7 segment LED display with a switch controlling each segment.
 
By operating switches pupils can identify the segments and investigate which must light to indicate different decimal numbers.

Order Code: 06-020  Price: £15.95

7seg.jpg

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