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Joachim Gerhard Filter Buffer for ES9022

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kumori

Member
Joined 2011
Here is a question about using the JG Filter buffer in balanced mode.

I would like to buffer each phase with one channel of the buffer, with a transformer coming after the buffer for unbalancing. Here is my question: Do I need to terminate the buffer to ground (let´s say with a 100k resistor from each phase-output to ground) to get a fixed ground reference?

I am missing the usual output resistor to ground and wonder if it is necessary in this design.

Thank you
Florian
 
G

Greg Stewart

Member
Joined 2003
Paid Member
Great! Sent an inquiry in early December, was patient as I know he's swamped. Been there, done that!

Am I correct in my understanding that the current Filter-Buffer boards are a little different from the original ones? I have one of the originals and wanted to get another to use for a balanced-output setup... will one original and one current be sufficiently matched to each other?

TIA!

Greg in Mississippi
 
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