Well, yes, but finding an exact replacement is problematic.
See the last few posts on this thread, Page 1.
https://forums.yesterdaystractors.com/viewtopic.php?t=1362696
It has 6 button diodes. Apparently similar to what is used in car
alternators. As of now, the volt and amp rating are unknown.
this schematic shows the big brother 240V version of this welder, and if
you look at the rectifier, mine is similar, but it only has one 6 diode
rectifier.
https://www.weldmart.com/main/technical/centurymig_troubleshooting.html
Or I could buy/scrounge some other Full wave bridge rectifier.
as seen in page 2 of this thread.
https://forums.yesterdaystractors.com/viewtopic.php?t=1362696
(Same as first link, but page 2.)
Dimitri Seretakis via Mercedes wrote on 11/11/19 10:59 PM:
Is the diode replaceable?
Sent from my iPhone
On Nov 11, 2019, at 11:28 PM, Curley McLain via Mercedes
<mercedes@okiebenz.com> wrote:
Doing some online research, it seems like a blown diode makes a welder buzz
loud.
I was welding on an MB one day. in the merry merry month of november...
then the welder started buzzing when I was not welding. I shut it down right
away, then tried it again a couple times. I thought it sounded like the fan
may be loose on the motor shaft.
THe welder is a Century 100 125v 100 A mig. 20% duty cycle. I have not
used it more than 20%.
I took off the cover, unplugged the wires to the fan, the gas valve, and the
wire feed motor. THat left only the 2 transformers. Same buzz when I plugged
it in and turned on the switch. (Without the fan, gas valve or wire feed.)
Here is the question. I assume this means there was an insulation failure
somewhere. Is this correct or would something else make it buzz loud?
Tomorrow is supposed to be 30-40º colder temp, so I thought I'd try it when the
temp is 30-40º to see if that makes a difference. It was not hot today, about
70 or so. That should not have been a factor.
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