F5X -- the EUVL Approach

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> original F5 is with irfp140/9240 higher transconductance
Not according to our measurements.

> How do you cope with it? less negative feedback?
Mosfets: Single pair vs multiple pair at same bias

I am only interested in distortion level and sound quality.
Even Nelson likes how the Toshiba's sound.
http://www.firstwatt.com/pdf/art_f5_turbo.pdf
Sony VFET Amplifier Part 2

> Pass used 2SK1530 - 2sj 200 type mosfets in a "F5" amp called F7
No sir, you mixed things up completely.
He was using lateral FETs from Semelab in the F7, similar to 2SK1058/2SJ162.
They are totally different from 2SK1530/2SJ201.
It will help if you take time to study and understand documents and datasheets in detail.


Patrick
 
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