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Tubelab Discussion and support of Tubelab products, prototypes and experiments

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Old 20th May 2013, 11:47 PM   #141
Sgrilli AD is offline Sgrilli AD  Brazil
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Join Date: Aug 2012
Location: Poços de Caldas - Minas Gerais
Originally Posted by boywonder View Post

I don't know the answer to your question, but you need to consider what would happen with either or both switches in the "off" position. In either case, you have either the suppressor grid not connected to anything or the screen grid not connected to anything. For the most part, having tube grids floating is not a good idea.

For a couple of bucks, I would just get proper switches, or as Sagi mentioned, determine what mode you like during the build, and wire it that way.
Hi boywonder,

Great ... this is the answer I was expecting. Now I can make a more informed decision.

I'll proceed under the guidance received. First, I will test all combinations off the PCB and then decide what is the best way.

Thank you so much

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Old 21st May 2013, 05:39 AM   #142
sagi4422 is offline sagi4422
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Join Date: Dec 2011
Basic questions on configuring Tube AMP
Good luck
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