Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "rruss45826" <rruss45826@a...>wrote:
started milling pcb's. I even built my power supply from an oldmicrowave
oven one. Since my machine is down i am working with thetoner transfer
method to get some driver boards built so i can get myrouter running again.
That's interesting. People here chuck out ovens all the time. 90% work
fine. I keep some of the bits, but always felt guilty about tossing the
transformer.

You used the magnatron transformer? They're fairly hefty (>1000 watt), with
2 secondaries? You run them backwards?

Would you mind giving a quick rundown?

For anyone who has never dismantled a microwave, you get a little synchro
motor, a fan, mains lead & fuse, a few thermal cutout switches, 3-6
microswitches, a 15-25 watt bulb, maybe a few odd bits like a 'browning'
element or moisture sensor, and that big transformer. The magnetron has a
couple of big magnets - fun! More interesting is the control panel, which
is self contained (has its own transformer). Has a few relays, power it up
& use it to time & control your etcher. Watch out for the capacitor. Note
the spade clips used are safety ones, you need to push the little lever to
get them off.

Tony


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