In Reply to: ECC99 Pin 9 confusion posted by banpuku on February 14, 2017 at 09:38:00:
The ECC99 pins out like the common 12A_7 types. Pin 9 is the CT of the 2 heater sections. System 1 uses pins 5, 6, 7, 8, & 9. System 2 uses pins 1, 2, 3, 4, & 9.
Eli D.
Edits: 02/14/17
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- RE: ECC99 Pin 9 confusion - Eli Duttman 09:43:26 02/14/17 (0)