GFA-555 transformer help

ben62670

Member
2006-12-27 7:58 am
I have a GFA-555 transformer, and all the secondaries are figured out, but I can't figure out the primary side of it.
Blk/Blu are in series.
Yel/Wht are in series.
It has a Brown, red, Org left. Where do I hook up 120, and nuetral?
1.3 Ohms between
Org/red, and Org/brown
.5ohms between Brn/red
Can I use 2 seperate 120(240) for more VA?
thanks
Ben
 

ben62670

Member
2006-12-27 7:58 am
OK I did a little playing around. I put some power to it. BIG BUZZ. This thing came out of a blown amp. The bridge rectifier was shot!.
OK so I have it hooked up to hot on the brown, and nuetral on the orange. I get 70vac on all outs. The only concern I have is 64vdc per out rectified. The red on what I thought was the primary is 24vac for the low voltage systems. I think this all checks out.
Thanks
Ben