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Old 1st Jul 2019, 1:15 pm   #26
ms660
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Join Date: Apr 2011
Location: Cornwall, UK.
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Default Re: Voltages on ECC83 in BlackBox

Quote:
Originally Posted by John10b View Post
Just a further comment, if there is indeed ment to be +ve voltage on control grid why isn’t it shown on service sheet.
Cheers
John
Because the bias voltage between grid and cathode can be deduced from the info provided in the service data, and what it actually measures can vary considerably depending on the meter used (see Post#17) due to the high circuit impedance.

Lawrence.

Last edited by ms660; 1st Jul 2019 at 1:30 pm. Reason: addition
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