November 2009

Welcome to all our visitors                                              SIR-KIT ELECTRONICS IS 21 THIS YEAR

I have added a new worksheet and PCB master to the Teacher page.

PLEASE NOTE THAT WITH THE CURRENT PROBLEMS WITH OUR POSTAL SERVICE IN THE UK, IF YOU WANT TO ORDER KITS OR TOOLS FOR CHRISTMAS PRESENTS, YOU SHOULD GET YOUR ORDERS IN VERY SOON NOW, AND CERTAINLY BEFORE END OF NOVEMBER.

Most of our prices remain the same and have not increased in spite of the present economic situation.

We have added a brand new pair of wire strippers and some mini combination pliers. The strippers are better than the basic ones and the pliers are especially useful for model makers as well as electronics use.  You'll find everything you need to help study basic electronics whether for an exam or as a new hobby.

 We have also added some new components on the components page. Including new torch bulbs and some bargain EXPERIMENTERS GOODY BAGS which contain loads of components useful for circuit development.  Most recent changes are marked . I have tested the new white LED and it is seriously BRIGHT and now only a third of the price of the previous one. Check our radio page for some new kits.

We have added some new links to the links page, most of which are useful to students and beginners to the hobby of electronics. Of particular interest are the links to Electronics discussion groups, where you can ask questions and get help with projects from other people who are into electronics as a hobby.

We look forward to your e-mails (we enjoy trying to help people with electronics related problems).  Last year we helped solve 3 problems for people trying to develop circuits for specific purposes. We hope you will watch out for our next letter.

All the best from Sir and his team.

ABOUT SIR-KIT ELECTRONICS

This Mail Order business was started in 1988 to provide a simple, inexpensive and practical system for learning basic electronics, for students studying for GCSE exams. It also proved to be very popular with people who wanted to start electronics as a new hobby. Since starting this web site, a few years ago, we have begun adding information pages which we hope will grow into a useful resource for people who are relatively new to the hobby and for those involved in electronics education.

SITE INDEX

The following is a brief description of what you can find on each of the pages on this site.

SIR-KIT SYSTEM

This page describes the system (INPUT, PROCESS [or Control] and OUTPUT) and has a simple system diagram and photos of some built up kits.

LINKS PAGE

This page has lots of links to sites that I have found useful and informative. Most are electronics sites but some are for web site building and others are of general interest.

SERIES ONE KITS    basic electronic kits for sale.

This page shows our analogue circuit educational kits. Including sensor circuits (temperature, light and moisture), transistor switch, darlington,  schmitt, 741 op amp (operational amplifier), dc amplifier, time delay, and output circuits including relay (and relay latch), motor, lamp and LED.

SERIES TWO KITS   simple electronic kits for sale.

This page shows our flip-flops (bistable, monostable and astable kits) using  both the 555 integrated circuit and the transistor.

This page has a range of electronic components for sale including:- batteries, wire, solder, switches, resistors, capacitors, diodes, transistors, integrated circuits, light emitting diodes (leds), bulbs, relays, motors, thermistors, light dependant resistors (LDR), battery holders, battery clips, crocodile clips, stripboard, breadboard, project boxes and potentiometers. This page carries special offers from time to time (when available), and our new goody bags.

This page contains a range of value for money electronics hand tools including pliers, screwdrivers, wire cutters, wire strippers, soldering iron, helping hands magnifier, tool sets and special offers (when available).

This page shows our 'build your own' led torch kits.

NIGHT LIGHT

This page shows our  led night light & torch economy conversion kit.

This page shows our simple, 'build your own' radio kits and a small amplifier kit which can be used with them, or to amplify other sources.

This page has a printable order form with ordering details.

Why don't we offer Pay Pal or credit card payment facilities? The simple answer is that although many of our customers are adults we are mainly aiming at teenagers who don't own credit cards, but more importantly we want to keep our prices affordable on teenagers pocket money. The cost of credit card processing must be passed on to all customers (most companies hide this charge in their prices).

This page contains advice on building our electronic kits (which may be useful to anyone new to the hobby of electronics). The resistor colour code is shown here. 

This page shows an example of how to set out the development of your electronic circuits for your GCSE project and how to prototype with our kits.

This page contains 2 worksheets and printed circuit masters (for a plant moisture sensor and a thyristor latching circuit) for use with Key Stage 3 (or possibly KS4) Technology classes. Others may be added at a later date if I get good feedback from people who use this page.