[R-390] AF Deck recap

2002tii bmw2002tii at nerdshack.com
Mon Jan 9 22:56:27 EST 2012


Renee wrote:

>I thought a 5814A was a 12AU7A only matched with sections and 
>reliability....maybe I am in error?

You are absolutely correct.  I was typing faster than I was thinking 
-- thanks for catching the error!

(Note that the circuit operates the 5814A at only 75 volts and 2.3 
mA, with a 56k plate resistor -- way, way away from the usual 
operating point of 10 mA or more with a plate resistor well under 10k.)

Best regards,

Don








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