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by maskedwarrior
Fri Feb 08, 2008 4:00 am
Forum: Electrics Forum
Topic: Soldering a bulb
Replies: 9
Views: 4016

thanks ericmark, SIze constraints force me to improvise a bulb holder setup - I would like to use ptoper holders but they won;t fit! Ahh, wattage, not voltage - my mistake. My iron is 20w - is this likely to blow my 2.2V / 0.5 watt bulbs do you think? If I wire the bulbs in parrallel I won't need to...
by maskedwarrior
Thu Feb 07, 2008 10:24 pm
Forum: Electrics Forum
Topic: Soldering a bulb
Replies: 9
Views: 4016

Ahh I realise a littl more what you mean now. That's a really helpful suggestion sparks, a big thanks! When you say cathodes together I get a little confused. So by putting a diode in line with the circuit I can stop a reverse current flattening the batteries? So this is the problem with wiring batt...
by maskedwarrior
Thu Feb 07, 2008 10:10 pm
Forum: Electrics Forum
Topic: Soldering a bulb
Replies: 9
Views: 4016

Hi Sparx - what classes as a low voltage soldering iron, how high is too high?? Where should I put the diode? Between the two parrallel groups in the series chain? The voltage I'm aiming for is 3V. I'm going to put 3 1.5V cells in a parallel arrangement, I'll call this unit 1, and then put this in s...
by maskedwarrior
Thu Feb 07, 2008 8:16 pm
Forum: Electrics Forum
Topic: Soldering a bulb
Replies: 9
Views: 4016

Hi rocky, it would be much easier with bulb holders I admit! But the orifice it's all going to fit into is only just big enough for the bulbs alone ... shame

ALso, do you happen know of a good glue to adhere to glass firmly but that will also peel off without leaving a mark????

Many thanks
Tony
by maskedwarrior
Thu Feb 07, 2008 6:38 pm
Forum: Electrics Forum
Topic: Soldering a bulb
Replies: 9
Views: 4016

Soldering a bulb

HI - I'm making a small dimmer circuit for 4 2.2V bulbs. It's purpose is to illuminate a small heart-shaped crystal glass bowl from the inside and create the appearance of a luminous crystal heart when I turn the bowl upside down I'm going to wire the bulbs in Parallel with two 1.5V batteries in ser...
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