Reply To: Schematics for AU90 transformer modification

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#786
John V
Participant

Aside from the turns ratio I’m not aware that any other specs for the AU90 were ever available.
I would contact Rob Mackinlay of ER Audio to see if can supply any
specs. Also, if enough people have an interest maybe Rob would consider doing another run of transformers.

http://www.eraudio.com.au/index.html