Output Transformer Bobbins — Is Paper the Real Gold Standard?

Output Transformer Bobbins – Is Paper the Real Gold Standard?
I’ve heard it repeatedly: Paper bobbins on output transformers in tube amps are somehow better than plastic bobbins. Is this version of the adage “They don’t make them like they used to” true or false? Or, is it a bit of both?

Transformers used to be wound on cardboard formers, which were hollow “sticks” of glued-up cardboard about three feet long. The hollow within offered just the right dimensions needed to slip the transformer laminations snugly inside.

View PDF Article

© Mercury Magnetics