fyi, nx-1 tranformer from digikey is 50voltamps (volts x Amps= watts) this equates to watts or power ratings not 50volts ,

oh i'm sorry its the n-1x that you were looking at, i wanted to just point out it the specification ytou were looking at was in voltamp on the digikey site not in volts , I see voltamp ratings as a watt rating( energy dissipated) were voltage is (potential difference from ground zero ) and so it doesn't really answer your question and i apologize . I was trying to understand what you were trying to achieve and got hung up on some semantics, overall it sounds like you are making a 40 years old machines electronics accept new electronic components. for performance or a work around of scarce parts maybe .

bally and stern look the same the schematic is changed a little but everything looks spec the same

transformer (resized).png

interesting torroid in parallel 50volt with 10 amp the 43volt 7amp is rectified DC on the fuse panel, xformer outputs are sent to rectification bridge , if you can drop the 50 down to 43volts maybe and fuse it a 7 amps . would this be closer ?

2279593.pdf