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-   -   How is a ESL driven directly by tubes? (http://www.diyaudio.com/forums/planars-exotics/89628-how-esl-driven-directly-tubes.html)

ak_47_boy 4th November 2006 03:03 AM

How is a ESL driven directly by tubes?
 
No output transformers, i saw this done someware i can't find it again.

el`Ol 4th November 2006 05:31 AM

Here is a direct drive thread:
http://www.diyaudio.com/forums/showt...300&highlight=

A second question if it is allowed to expand the topic:
Does anybody have the schematic of the Lundahl magamp? I ask myself whether it is possible to build a high voltage version with selenium diodes.

ak_47_boy 6th November 2006 07:24 PM

I have another quick question (sry it doesent really relate much to the thread title). Are there any formulas for stator spacing, wire sizes, voltages ect.

Tweeker 6th November 2006 07:44 PM

2 Attachment(s)
Brian Beck's extreme example, direct drive no stepup parallel 833 bridge SRPP amplifier, with + and - 4000V rails. 4 833s per channel. Drives Quad ESL-63s.


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