now, the first test is done.
i replace the ecc91 with an ecc81 and use two semi diodes because the eaa91 today not delivered.
the messurement behind the diods with 1k sinus 0,755 rms at the input are 62,8V + and - 62,8V.
this should not be much lower.
the compression are a little bit to slow but works.
i guess, the 100nF needs to much time to load.
i reduce it for a faster compression later or use one rotary switch to adjust it later.
at this moment, dont know about the reduction in db. This follows after after fix the attack timing.
for more details i have to messure anything completet and listen it with my hornspeakers.
now the dynamic section:
woah!
it sounds awesome...
the 3,3 cap between the triode stages prevent it to "overbass" and just "tune" the rest.
you can hear thats not only louder. its really more dynamic.
i like it and want to build one in an old rack chassis.
i have a lot of tracks to record it new.
this based on the schematic i posted before.
greetings from grey cold hamburg