microscope lighting circuts

[science teach]

I have three EDUSCIENCE Big Screen microscopes for my science
classroom. I want to refit the non-working circuts to make them plug
into regular wall
outlet. Where can I find the parts and the help to make this happen.

 

[John Fields]

On 10 Jul 2004 08:27:35 -0700, k.lef@verizon.net (science teach)
wrote:

I have three EDUSCIENCE Big Screen microscopes for my science
classroom. I want to refit the non-working circuts to make them plug
into regular wall
outlet. Where can I find the parts and the help to make this happen.

---
If the manufacturer can't/won't help, you can find the help and,
probably, pointers to where to get the parts here or on
sci.electronics.design. _But_ you'll have to come up with enough
details to keep us from having to guess what you're dealing with.

--
John Fields

 

[JeffM]

I want to refit the non-working circuts
to make them plug into regular wall outlet.
science teach

The unit I had as a kid used 2 AA cells in the base (3 volts).
The mirror's gimbal was the return path (the frame was "ground")
and the mirror rotated 180 so that the bulb on the other side pointed up
and in so doing, the protruding hot terminal on the mirror/bulb holder
contacted a pad that was a voltage source.

Details like this would be helpful.