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

What gauge wire would you use ?


Dave Halliday wrote:

>I have successfully used Microwave Oven transformers for making your own
>low voltage, high power supplies and have been collecting them for a
>couple of my own projects. Last week, I placed an advertisement in a
>local want ad paper and found a guy with over twenty of them!
>
>Needless to say, I have quite a few more than I need. The smallest of
>the ovens was rated at 600 Watts (which is 20 amps at 30 volts). I have
>a few that are 1KW and higher.
>
>I will be selling the 600+ Watt units for $20 including shipping to any
>USA address (I am not set up to ship overseas at this time)
>
>The 1+ K Watt units will be $25 including shipping.
>
>Shipping will be by USPS Priority Mail.
>Payment by PayPal.
>
>All of the units have a separate primary and secondary winding. All the
>primaries are 120 VAC only. The secondary can be removed with 10 minutes
>work with a hacksaw and prying with a screwdriver.
>
>You then wind ten turns of wire around where the secondary used to be --
>measure the voltage present and then figure out how many turns are
>needed to get the voltage you want. The one's I have tried so far get
>about .6 to 1.5 volts per turn so a 50 volt secondary should not be that
>difficult to wind and there is plenty of space to work with.
>
>I can remove the secondary for you for an extra $5
>
>10 day inspection but you need to pay the $8.30 postage each way.
>
>All units will be tested under load and are guaranteed good.
>
>I'll have photos of the units on my metal-working web site in a few
>days.
>http://www.blackmountainforge.com
>
>

--
Ron Kline

American Precision Ceramics
Central Ky.