Rectifier output

[Jnigel71]

Hi can anyone tell me what the output of the rectifier from a mighty MiG 150 should be cos we got a reading of 36 ohms
Trying to figure out the loss of power as max is the same power as min n both rocker switches work
Thanks

 

[voipio]

How is the "output" being measured? Is the 36 Ohms figure obtained by measurement across the output terminals with the welder powered off?

 

[eddie49]

See also this earlier thread, possibly this is a continuation of the same issue:

Sealey mightymig 150 transformer check for power

Hi , I have just put a new liner into my mightymig 150. On feeding the welding wire through using the gun trigger the welder stopped. On taking off the main cover I could see the welding wire had jammed in the liner and had found its way into and around the pcb causing a short. I was not sure as...

www.mig-welding.co.uk

 

[Dragnet]

As eddie49's comprehensive reply on that thread, a rectifier, constructed from diode(s) converts AC to DC. You should read a potential difference across it in DC volts. A resistance is not an output, but a measurement of how much the object under test resists current flow. Have you checked the connections as per the other thread, assuming this is the same welder?