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Fisher EFB thread

For those of us who have modified the 15ohm 5W to the Negative side of the Bias/Heater circuit to split the voltages, (See below Pic), does the AC tap come from the -32V IBBA B- side or the -24 Heater B- side. I would presume the -32V side.........thinking about EFB for my late 400 and if I don't blow it up, the early 400 and 800c's. Updated bias power 400- 500-800B and C models.jpg
 
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