Now there are a lot of electro wiz kids out there who will laugh at me, but whilst I can calculate the shear strength of an oak beem under a torsional 150kn loading my electrical knoladge ends at wireing a plug.
No my feet of briliance today was on a par with a moon landing. I fixed my tourch
Last dive I flooded my CD halogen tourch. Having striped it apart in the past I knew that there was a resistor in the black bit and post flood it had vanished. So I contacted CD and asked them what the value of the resistor was and they told me 10 Ohm. Cool. So a trip to Maplins later and 0.7p less in the bank account I am the prowd owner of a 10ohm resistor.
After a bit of deft work with a soldering iron the rig is put back together and to my horror it fails to work
Stripping the mag swith down again I find a broken wire leading to an equaly broked small glass tube. in side the black bit. Inside the glas tube are two bits of copper looking like a read valve. Could this be a reed switch
A quick serch on the maplins web site finds reed switches with loads of info none of which I can understand. So I go to Maplins and get one of each reed swith (they had 3) One had two wires on one end so that was out and I narrowed it to two. Total cost £1.58p for the two
Back home in the laboritory, i anm once again armend with a soldering iron. Then the big moment comes annnnnnnnnnnd
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It dosent bloody work
I had used the more powerfull 1amp reed switch and it was having none of it. Then I used the powerful magnetic base of a DTI stand to see if it would switch the light on.
Ha Ha Ha Ha It works I am an electrical god
Obviously the magnet in the tourch head wasent powerfull enough to operate the switch. A quick swap to the lower powered reed switch and hey prestow a fulley working CD tourch.
I feel sooooooooooo clever it hurts
So if you flood your CD tourch head just get a 10 ohm resistor and a CL37S 0.5 switching amp reed switch and as long as you can use a soldering iron your laughing.
ATB
Mark Chase