Slowly progressing as raising children consumes a complete time and more...

Prototype input stage with PAM8304 basic ebay board and homemade 35:5 transformer... experimental results show an unloaded voltage gain of 40 which is nice as a 5V swing will generate a 200V output, perfect for driving any phase splitter as soon as I have the miliamp or so to do it

Completing board tomorrow :)