hi Audioguy
for capacitors I used FC and FM serie PANASONIC!
on mic pre part only 5% tantal is 47uf
and elna in PSU is any 105degree ..will work fine ..they are not in audio flow!!!
about changing ICS, transistors.....
I will keep as is .. I love sound of that console and i dont wanna mess with its great character that studer ppl put in that box!!!
all my lm 301 in console are old signetics and console sound awesome...
!!why to kill a good sound!!... just becouse somebody made modern replacmenet for tht IC!
.... for 30 years sruder 169 sounded awesome..... whyto change that.. If i want modern preamp Ill buy one!!
( had a lot ..sold em allmost all)
have fun