Aerial amplifiers can be very useful if your signal reception is not quite up to scratch. They are used to improve the performance of your T.V. or radio equipment. If your T.V. picture is 'grainy' or in the...
I have tried a few different intercoms and basically it comes down to the age old saying of 'You get what you pay for'. Tried some cheapy £30 intercoms from Argos and they were fine . until you started moving!...
Now I may look like an idiot in a Stormtrooper uniform but as well as working as an extra on "Star Wars IV" I also have a Ph.D. in electronics, so let's see if I can help you with your battery problems. Sealed...
So you are thinking of buying a valve (or tube) tester and perhaps wondering where to start.The type of tester you want to avoid are utility testers that just check filament continuity – you can do that with a...
Green laser pens, the latest craze sweeping around the world. You have probably never heard of them before? Surely every one knows about RED laser pens? Shining it about and seeing how far it will go, reaching...
Great, the Sky Plus or Sky Box that you bought on eBay arrives and you hastily plug it in. Disaster, it's dead, stuck in standby. When you press the on or Sky button nothing happens! If this has happened to...
So you are new to radio and wish to experience your first receiver. The first choice to make is to distinguish which type of radio you require, a base station or handheld and what sort of communications you...
All you wanted to know about the e-cigarette The e-cigarette is an amazing invention that is taking the world by storm! It is a battery powered ‘cigarette’ that actually produces ‘smoke’, can deliver nicotine...
Green lasers: InfraRed filters Why they are important- With green lasers getting more and more powerful as time goes on, it is vital that you are aware of the dangers posed by them. Without an IR filter, a...
Having read a few items really i try not to laugh.. look out for these sayings.. 'unable to test' 'have no aerial' 'i know nothing about this' these mean.. it's been tested and is faulty or knackered,...