Worley
2007 July 18th, 15:10
I know lots of us are making our own 35mm adapters, and finding the components for the battery compartment - battery holder, switches, potentiometers, etc.
Personally, I have found it a bit of a chore assembling everything, especially as I'm not a great at soldering, and I have very limited access to the tools required to make the job progress at a decent rate.
Well, I think I've found a neat solution from Maplin. This box (http://tinyurl.com/2m7asl) is designed for 9v PP3 batteries, it has a switch built in, and there are wires pre-soldered.
http://hv20.info/yopu/PP3box.jpg
The terminals are easily removed by snipping the wire that connects the negative to the switch. Once removed, the wire to the positive terminal can be removed without cutting it.
An AA battery holder than then be inserted. It's a nice snug fit, so no gluing is required. And you can avoid soldering if you position the wires carefully - the fit is snug, so they won't come loose. All that remains is to insert the potentiometer, though I am experimenting with a fixed value resistor (http://tinyurl.com/2jcj7v).
Voila! the perfect control box. Small, not much bigger than 2 AA batteries, neat and pro-looking (though not very interesting). Easily attached to the extension tubes with velcro.
In all, mine came to £1.81.
Personally, I have found it a bit of a chore assembling everything, especially as I'm not a great at soldering, and I have very limited access to the tools required to make the job progress at a decent rate.
Well, I think I've found a neat solution from Maplin. This box (http://tinyurl.com/2m7asl) is designed for 9v PP3 batteries, it has a switch built in, and there are wires pre-soldered.
http://hv20.info/yopu/PP3box.jpg
The terminals are easily removed by snipping the wire that connects the negative to the switch. Once removed, the wire to the positive terminal can be removed without cutting it.
An AA battery holder than then be inserted. It's a nice snug fit, so no gluing is required. And you can avoid soldering if you position the wires carefully - the fit is snug, so they won't come loose. All that remains is to insert the potentiometer, though I am experimenting with a fixed value resistor (http://tinyurl.com/2jcj7v).
Voila! the perfect control box. Small, not much bigger than 2 AA batteries, neat and pro-looking (though not very interesting). Easily attached to the extension tubes with velcro.
In all, mine came to £1.81.