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Posts by kevin gilmore

The WES is NOT my design. Not even close. I would never do that.   The GES IS my design.
that amplifier has a multiple tap output transformer to drive both kinds of headphones.   stax amps have no such transformer.   there are a couple of other amps that are built like this. I would stay away from all of them.
first picture has no voltge levels. could be 10 volts lots of conflicting published information, but no picture of 10khz at 500vac why? piles of misrepresentation here.
I was referring to the square wave graph linked to here (pic3)   because a triangle wave is useless for measuring rise times. in fact triangle waves are usually very sharp at the top and bottom peaks, something that looks very rounded in the graph above.   And yes I own 100x Tektronix probes suitable for making accurate measurements at 1kv levels. 20pf loads.
Eric I will bet you put a fair amount of work into that. Trouble is your complete lack of understanding on how electrostatic amps work.   Just about every electrostatic amp out there is balanced push pull. (frank's amp is one of the exceptions)   That means that the active element (top element kgss,kgsshv and all late model stax solid state) (bottom element stax tube, kgst,T2) is capable of way more than 9 ma of current. The 9ma of current is just the class A...
No reason  not to go to extremes in the testing of this thing if for no other reason than to test out your test gear.   I do also have access to a pair of STEM's just for fun and to see if the silver is single crystal or not.
From the pictures, the diameter of the wire sure looks to be #20 to #22 gauge.  So significantly less than 1 square millimeter.Plus the really poor solder joints. So a higher resistance than quoted. The poor solder job is probably part of the magic sauce. In the future, I have a lab full of analytical instruments. And I'm more than happyand capable of using them. Every kind of Mass Spec you could possibly imagine including ICPMSA high resolution bruker FTIR with diamond...
in the same way that a bybee can ever so slightly change the sound of large inefficient speakers by adding .025 ohms which will slightly change the damping factor and a number of other parameters   the HOT can ever so slightly change the sound of headphones due to the addition of something like .01 ohms.   so maybe if you listen long enough, you might be able to hear a difference. but the statistics are not going to be in your favor.   In any case, you can make...
electrostatic speakers have large step up transformers (quad56,quad63,klh9...) or dedicated high voltage amps (acoustat,beveridge...)
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