Beginners Hobby Electronic Kits

Please Download our "Beginners Electronics Guide" before ordering kits. No-solder kits
Stereo Listening amplifier This is READY BUILT - not a kit. Although it is not recommended for use as a hearing aid, it can be used to let you (for example) hear the TV set when you don't want to disturb the neighbours. It has an on-off switch, a volume control and a balance control (to balance the volume between both ears). It also lets you set the tone to "HI" which enhances the higher frequencies to make speech clearer. Requires two AAA battery cells (not included). Requires stereo headphone or earphone set (not included). (We recommend the Sony "Fontopia Plus in-ear headphones" from Argos, MDR-ED21LP as illustrated in the picture). Dimensions: 80 x 56 x 30mm Weight including battery cells: 67 gms Small, lightweight. Fits easily into shirt pocket. Stereo Listening Amplifier £24.95 Qty Include 4 AAA batteries £1.00
	Circuit Layout Board Our "BredBord" moulded assembly breadboard for laying out electronic circuits quickly and easily without soldering. Ideal for beginner or professional. "BredBord" £6.95 Qty
	LED flasher kit - flashes a single LED Components including LED, IC, resistors, capacitor. Requires "BredBord", wire and 3v battery or power supply. LED Flasher kit LEKIT2 £4.95 Qty Include "BredBord" £6.95 Include Battery pack £4.25 Include Power Supply £9.95
	LED multivibrator kit - flashes a single LED Components including LED, transistor, resistors, capacitors. Requires "BredBord", wire and 3v battery or power supply. LED multivibrator kit LEKIT3 £4.95 Qty Include "BredBord" £6.95 Include Battery pack £4.25 Include Power Supply £9.95
	LED sequencer kit - flashes 10 LEDs in sequence (see movie below) Components including LED, IC, resistors, capacitor. Requires "BredBord", wire and 6v battery or 6 - 12v power supply. LED Flasher kit LEKIT4 £7.95 Qty Include "BredBord" £6.95 Include Battery pack £4.25 Include Power Supply £9.95
See LED sequencer in action!		MVI_2021.AVI
	SOLAR ENERGY KIT 37-0420 £10.70 Qty An introduction to solar energy. The kit comprises: Eight 500mV 100mA solar cells Miniature DC motor Small fan Plus all tools and cables enabling the user to construct a working kit Output of 3.2V may be employed to drive a variety of other small components Twelve page booklet explaining solar energy in considerable detail
Kits which require soldering
	FLASHING LEDS KIT 70-4138 £5.95 Qty Include PP3 battery £1.00 Include solder kit £0.95 A simple multivibrator circuit driving two LEDs. Suitable for many applications including model construction and education Adjustable flashing speed with two potentiometers Power consumption approx. 8mA Dimensions: 30 x 35 x 15mm Components, printed circuit board and construction instructions Battery clip included
	Soldering iron and tools can be ordered from our Tools page.
	WATER LEVEL ALARM (NON-ROHS) 13-0510 £7.95 Qty Include PP3 battery £1.00 Include battery holder £0.25 Include solder kit £0.95 A kit of parts to produce a simple, yet effective, water level alarm. The kit contains a single-sided PCB and the components required to build the detector When water completes the circuit between two wires attached to the PCB, e.g. in a bath tub or water tank, the circuit oscillates and produces a buzzer sound via the miniature loudspeaker Circuit operates from a 6 to 9V supply PCB dimensions: approx. 55 x 28mm Speaker diameter: 50mm Component count: 8 Complete with constructional instructions The detector wires and battery clip are not included
	CABLE POLARITY CHECKER KIT 70-4154 £6.95 Qty Include PP3 battery £1.00 Include solder kit £0.95 Check cables for continuity and identify individual wires. Perfect tool to check loudspeaker and coaxial cables LED indication for open circuit, shorts and correct or wrong polarity Push-button operation with auto power Off Low power consumption: 10mA max. Dimensions: main board: 56 x 40 x 33mm, remote board: 40 x 7mm Kit contains all components required including printed circuit board and construction instructions Requires a single 9V, PP3 battery Battery clip included
	CAR ALARM SIMULATOR KIT 70-4152 £6.25 Qty Include solder kit £0.95 LED with realistic flash sequence simulates active car alarm system. Activates automatically when the engine is turned off Easy installation with two wires Adjustable sensitivity Low current consumption: 12mA max. (12V only) Comes complete with prewired LED holder and two warning labels Dimensions: 57 x 45mm Components, printed circuit board and construction instructions
	SUPER BRIGHT FLASHING LED LIGHT 70-4164 £6.95 Qty Include PP3 battery £1.00 Include solder kit £0.95 A module with two superbright red LEDs giving a powerful warning indication. Ideal for emergency and warning signs, eye-catchers, etc. High visibility 'alarm-active' - simulation, etc. 'Auto turn-on at dark' - mode with adjustable sensitivity On/Off switch Can be operated from 12V supply Dimensions: 55 x 32 x 40mm Components, printed circuit board and construction instructions Battery clip included 9V, PP3 battery, not supplied
	DUAL WHITE LED STROBOSCOPE KIT 70-4052 £7.20 Qty Include PP3 battery £1.00 Include solder kit £0.95 Build your own high intensity white LED stroboscope, complete with adjustable speed. Features two super bright white LEDs Powerful flash effect Great for a party, use in scale models or just as an attention grabber Slow/fast selector Speed selector, adjustable between approx. 1 and 60 flashes/second On/Off switch Low power consumption 40mA max. Suitable for beginners Dimensions 545(L) x 32(W) x 40(D)mm Battery clip included 9V, PP3 battery, not supplied
	ELECTRONIC CRICKET KIT 70-4006 £7.20 Qty Include PP3 battery £1.00 Include solder kit £0.95 Include Power Supply £9.95 Create and simulate a hot summers night with this fun little cricket project. Makes a sound like a cricket Cricket tone automatically starts when it gets dark Repetition, effect and sensitivity are all adjustable Can be used for fun and is small enough to hide almost anywhere Some soldering experience recommended Suitable for beginners Dimensions 60(L) x 25(W) x 10(D)mm Battery clip included Requires an 8-15V DC power supply or a 9V PP3 battery
	LIGHT SENSITIVE SWITCH KIT 70-4150 £6.95 Qty Include solder kit £0.95 Include 500mA Power Supply £9.95 Automatically switches on at dusk and turns off at dawn. Use to switch lights or draw curtains, switch on alarms, etc Adjustable sensitivity with wide range Delay circuit avoids cycling Relay output: NO/NC 24V/5A max. Power adapter connector Dimensions: 65 x 50mm Components, printed circuit board and construction instructions Requires a 12V DC power supply. If you need more than 500mA, please order separately.
	MOBILE PHONE OPERATED SWITCH 73-4406 £9.95 Qty Include solder kit £0.95 Include 500mA Power Supply £9.95 A kit of parts to build a circuit which is activated by the backlight of a ringing mobile phone. Turn equipment on and off from a remote location Turn on lights, heating, alarms, etc. No call charges as circuit simply detects backlight No need to modify your mobile Can turn on or off, or on for a selected time Mobile phone not included (obviously!) Requires 12v 100mA (minimum) power supply. (Our 500mA supply is fine).
	METRONOME KIT 70-4008 £7.20 Qty Include PP3 battery £1.00 Include solder kit £0.95 This is a very useful metronome for musicians or for any person who needs a simple means to keep a rhythm. Tempo is adjustable Uses very few components and produces an LED beat indication Adjustable volume and beats/minute with potentiometers Includes speaker and On/Off power switch Some soldering experience recommended Suitable for beginners Dimensions 60(L) x 43(W)mm Velleman MK106 Battery clip included Requires a 9V battery (not supplied)
	POCKET VU METER KIT 70-4022 £6.95 Qty Include CR2032 battery £0.85 Include solder kit £0.95 This is really a great kit. It is a hand-held audiometer that fits into your pocket. Allows you instantly to visualise signal levels from a whole range of different audio sources Built-in high sensitivity microphone picks up the music playing and the LEDs move to the rhythm of the music Surprise your friends in the disco LED bar-graph display 5 red LEDs Incorporated microphone Adjustable sensitivity control On/Off switch Designer enclosure Some soldering experience recommended Suitable for beginners Requires a CR2032 lithium battery (not included)
	Soldering iron and tools can be ordered from our Tools page.
	QUARTZ CLOCK MOVEMENT KIT NON ROHS 85-1430 £3.95 Qty Include 4 AA batteries £1.00 A quartz crystal controlled clock movement kit that is ideal for replacing defective units or for creative clock projects. M8 threaded spindle for securing to clock face Red second hand Hands are secured on tapered shafts with second hand secured within spindle Supplied complete with hands, fixings and mounting bracket Designed for clock faces up to 6mm thickness approx. Can be mounted on a CD crystal case which can be illuminated with LEDs Requires 1x AA battery (not included)
	ROULETTE KIT 70-4026 £11.45 Qty Include 4 AA batteries £1.00 Include solder kit £0.95 This roulette kit will be a sure winner with you, your friends and relatives. With a push of a button, the LEDs lights flash in a spinning sequence and where they stop is anybodys guess Enjoy hours of fun with this game of chance 37 LEDs are arranged in a circle Winner tune played for each colour Pushbutton operation Microprocessor technology Auto power off Low power consumption Some previous knowledge of electronics required Good soldering techniques for medium dense boards Suitable for intermediates Battery holder included Requires 3x AA batteries (not included)
	RUNNING LED LIGHT KIT 70-4010 £7.25 Qty Include PP3 battery £1.00 Include solder kit £0.95 This kit will produce a running light effect. 8 LEDs Different running light effects are selectable (Prog push button) Adjustable effect speed with potentiometer Includes stand-by push button power switch (Off push button) Suitable for beginners Dimensions 95(L) x 40(W)mm Battery clip included Requires a 9V battery (not included)
	SHAKING DICE KIT 70-4056 £9.95 Qty Include CR2032 battery £0.85 Include solder kit £0.95 A novel die that you dont have to throw or press any buttons, just shake it. Acts just like regular die Lights roll out slowly and flash the last combination or winning number Buy two and simulate a pair of real dice Auto power-off Suitable for beginners Dimensions 36(L) x 36(W) x 32(D)mm Requires one 3V Lithium button cell (CR2032 not included)
	SIREN SOUND GENERATOR KIT 70-4020 £7.95 Qty Include PP3 battery £1.00 Include solder kit £0.95 A novel kit that will generate 4 different sounds. Sounds include police siren, fire brigade, emergency vehicle and machine gun RV1 adjusts sound pitch On/Off switch and PCB speaker included Suitable for beginners Dimensions 60(L) x 40(W)mm Battery clip included Requires a 9V PP3 battery (not included)
	SIREN SOUND GENERATOR KIT 70-4020 £7.95 Qty Include PP3 battery £1.00 Include solder kit £0.95 This kit will generate the sound and whistle of a vintage steam engine. Adjustable speed and volume Great for model railroads, radio plays, stage and as a gadget With steam whistle push button Comes with 8 Ohm 5W miniature speaker Suitable for beginners Dimensions 100(H) x 83(W)mm Battery clip included Requires a 9V PP3 battery (not included)
	SUPER STEREO EAR KIT 70-4156 £8.75 Qty Include 4 AA batteries £1.00 Include solder kit £0.95 Stereo audio amplifier boosts sound 50 times. Great for the-hearing impaired (e.g. when watching TV) Interesting gadget, science project, etc. With volume control and On/Off switch Dimensions: 62 x 54 x 44mm Components, printed circuit board and construction instructions Battery holder included Takes three 1.5V AA batteries, not supplied. Requires earphones or headphones (not supplied).
	THERMOSTAT KIT 70-4048 £7.15 Qty Include solder kit £0.95 Include 500mA Power Supply £9.95 A kit to make a general purpose thermostat with NTC temperature sensor. Temperature range +5°C to +30°C approx. (+41°F to +86°F approx.) Output relay with LED indicator Relay power rating 24V AC/DC 3A Suitable for beginners Dimensions 54(L) x 62(W)mm x 28(D)mm Requires 12V DC power supply 100mA (minimum) - our 500mA supply is fine.
More Advanced Kits No instructions are supplied with these kits. You work from the circuit diagram and build the circuit on a "BredBord" or solder the components onto Stripboard. Please order one or both of these items with the kit (below).
Relay Timer Kit	The circuit is designed to turn the relay on and hold it ON for one second after seeing a positive going input. To explain that a little better, imagine that the relay is connected so it feeds power to a car headlamp washer. Suppose that the input is connected to the windscreen washer switch. Each time the windscreen washers are turned on, the circuit receives a 12 volt input.
Stripboard BredBoard	The timer I.C. will turn the headlamp washer on for just one second then turn off, regardless of whether the windscreen washer is still on or not. The coupling capacitor, C4, requires a certain amount of time to discharge after seeing an input. So the relay can not be operated again by the headlamp washer switch until a short time has elapsed. This system removes the possibility of having the relay continually clacking on/off as the windscreen washer switch is operated. The circuit has other uses, too. The relay can be made to stay ON longer by increasing the value of R2 and/or C2 (which should be a Tantalum type). Note that not all "555" timer I.C.s will operate satisfactorily in this circuit. The TLC555CP is recommended. RELAY TIMER KIT £4.95 Qty 1 Include "BredBord" £6.95 Include "Stripboard" £0.99 Include solder kit £0.95 Include 12v 500mA Power Supply £9.95