I have a question concerning an old Epsco power supply. It's a model "NFB' is all I can find on it. It's 32 volt 15 Amp and someone has robbed the rheostat from it. I have called the company three times and e-mailed them once to get some information on it and they have not responded.

I would like to know the value of the rheostat to see if I can find one of appropriate size. There seems to be no information on the web that I can find. Any help is greatly appreciated as I am not electronically educated enough to maybe do the math and figure it out.

Thank you in advance, James