RAAL DTD tweeter

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ALEXZ

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on: March 13, 2013, 03:15:07 PM
Hello,
does anyone use RAAL DTD in a parafeed configuration with 300b or 2a3 SET ?   There very little DTD transformers  data available, from what I've got from Aleks they are 3k, gapped for ~80ma, so designed to use as "traditional" anode transformers ... Any recommendations are very welcomed.  Thank you.




Offline Paul Birkeland

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Reply #1 on: March 13, 2013, 06:45:02 PM
When I got my Raal ribbons, they were supposed to have the gapped amorphous 3K transformers, but when I attempted to hook them up this way, the results were very poor.  In retrospect, I think they ended up sending me the first generation drivers.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


ALEXZ

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Reply #2 on: March 14, 2013, 08:55:13 AM
Strange, are they marked DTD ?   You probably can measure transformer, DTD should be 175:1,
regular 8 ohm something like  9:1