Eico-HF81 tone controls

do U mean the tone PECs?
the circuit design is Baxandahl.
the PECs are not on the centralab list .
the schematic is in the 81 manual.
 
clarastat.
they made the pots in my HF85 and probably other
Eico amps as well. dual concentric.
Its printed on the front of the body at the threaded end.
 
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Centralab made many of their pots as well -- particularly those in the tone controls, since they used their PECs for those circuits.

Dave
 
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