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Re: what are good sounding circuits for Electraprint choke-splitter?

From the Seth article:

"It acts as the phase splitter in a simple but so elegant way. Putting the choke center tap to ground will create a reflected signal inverted 180o on the bottom leg from the one that is fed on the top leg (where C2 is connected)."

Has anyone confirmed this with measurements? In my playing around with high impedance centre-tapped audio transformer primaries in this application (no DC) the unterminated end rings like the Gong Show at high frequencies. The driven end of course depends on source impedance. The upshot is p-p balance goes way out of whack at the top end. I don't yet know if this is due to iron quality (vintage Hammond and a Freed so far) or topology but strongly suspect the latter is the main contributor. I notice the Seth doesn't load the undriven end to compensate.


Thermionically addicted.

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