differential-->PP:PP IT driver stage (LL1635PP)

K&K Audio / Lundahl Transformers

Welcome! Need support, you got it. Or share youe ideas and experiences.

I'm considering using a PP:PP interstage to load a differential driver stage. I would like to use an ungapped IT for the highest inductance possible here, but I have gathered that there must be essentially zero net DC through the primaries. I have seen designs (Fi primer) that use a pot on the common cathode connection to closely balance the current of the two tubes. Is there any reason why this would not work here? Anything to watch out for?
See the following link for the amplifier schematic as it would be. This is a modded kit amp, so there are a couple odd features that are necessitated by the PCB layout/power supply. Any other suggestions welcomed as well.
Thanks

schematic (pdf) (Open in New Window)

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Topic - differential-->PP:PP IT driver stage (LL1635PP) - zarniwoop 14:57:56 12/14/03 (4)

Re: differential-->PP:PP IT driver stage (LL1635PP) - KevinC 16:12:42 12/14/03 (3)

Is the highest inductance the best choice ? - akltam 19:20:59 12/14/03 (2)

Re: Is the highest inductance the best choice ? - KevinC 06:28:11 12/15/03 (1)

thanks... - zarniwoop 14:24:17 12/15/03 (0)

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