Re: [CAD_CAM_EDM_DRO] UPDATE: Stepper and Servo power supplies: Microwave Oven Transformers for sale

To think when we moved out of our commercial property, I left
scores of microwaves. Just didn't have the gumption left in after
working to move everything else almost 24/7 for two weeks.

Left scores of older TVs as well, though I still have barrels full
of transformers from them. I have to admit though that I had a mountain
of stuff that I did manage to get scraped. Still had a mountain to go.
Sure somebody made a buck on scrap on it, as they
were lined up to get it.

So what about tv transformers?

Goat

Dave Halliday wrote:

> I am done dismantling the ovens, took several hundred pounds of sheet
> steel to the local recycler to be remelted into A36. Only had a couple
> bags of stuff that had to be landfilled (plastic, front doors, etc...)
>
> Not done testing the transformers yet but it looks like I will have
> about twenty of them for sale.
>
> I will be shipping via USPS flat rate carton ($8.30) and you can get two
> smaller transformers into a carton.
> The transformers will be bolted to a sheet of plywood and then
> surrounded with hard plastic foam (foundation insulation). They will
> arrive in good condition.
>
> I'm selling the smaller transformers for $20 including the shipping.
> The second one sells for $12.
> I rate them conservatively for 400 Watts continuous duty. They weigh
> around 9 or more pounds each.
>
> I have a few larger transformers that I would rate at 600 Watts
> continuous duty. Only one will fit in a box.
> These are $25 including shipping. These weigh 13 or more pounds.
>
> Considering that it will take you about two hours to wind your own
> secondary and that a commercially made power transformer of this size
> costs from $90 on up not counting shipping, this is a good deal.
>
> I have removed the secondary on a few of them (starting my projects) and
> the best way I have found is to clamp the transformer into your vice and
> then use a smallish (16 oz.) hammer and a 1/2" cold chisel to cut
> through the copper windings. The quickest and the safest. Make sure
> that you work _away_ from the primary windings.
>
> I'll have some pictures up at the Black Mountain Forge website in a day
> or two.
>
> Hint: If you have a metal bandsaw, do NOT use that!!! Don't ask me how
> long it took to clean all the little pieces of copper wire from its
> guts. :-P
>
>
> Email me off list for more info and PayPal account.
> Sales to USA only please although I will consider Canada --
> international shipping is a pain.
>
> Dave