Thank you Gary, now everything works @5Vcc ( but no more touch screen, of course!)
I can probably save energy at 3.3V, but I use the 5351 board from Cina,
working @5V. There is always something to learn, for example?
not all BAT54 are the same.....I need BAT54SL, not a common BAT 54,
or 54A or 54C, and of course I buyed the wrong ones... :-)))))
C81 on emitter of Q90 must be 100nF, and not 470pF as indicated on V6.
Still a lot of fun, also at 68 y.o.
paolo
?
Paul Allison