tell me about these Miller welders

[Lunar]

I found an ad for these two Miller welders and I assume both are no longer being made. I`d like to know when they were last made and any other info good or bad about them. They are both TIG machines. Thanks! Miller 320A/BP,AC/DC, 200amp, 60% duty cycle, 208/230/460, 1 phase. The other is Miller 330A/BP,AC/DC 300amp 60% duty cycle 208/230/460 Lunar

[burninbriar]

If you can get the serial numbers,go to Miller home page,service and support tab,replacement parts or service manuals,serial number reference chart.
You can date the machine there and probably download a manual.

[ASKANDY]

They are old sine wave type output units. Good arc at the time but the squarewave units are tons better. Also, parts are getting hard to find.

Andy