Interstage transformer coupling

[euro21]

Example, B+ + 350V

... and the swing would be 2x350V.

 

[6A3sUMMER]

Good points!

700V + 80V = 780V, wire to side-by-side wire.

 

[euro21]

Good (polyester/polyamide insulated) magnet wire's breakdown is about 4-8kV.

 

[50AE]

That would happen if you would invert the transformer and it will result in an extreme amount of capacitance.

1:1 Bifiliar wound transformers connected in proper phase have zero AC potential difference thus zero P/S capacitance.

Any magnetic collapse resulting into a high primary voltage should result into an equivalent secondary voltage, no change in potential difference and no P/S arc-over will occur.

 

[6A3sUMMER]

50AE,

So, we are back to the 420V, as I said in my original example.

Yes, inverting has such large capacitance, the high frequency bandwidth stops short of a 105 year old man's hearing.