tube screamer ICs

[bukas]

just finished ts. made it 808/ts9 with diode switch and it works great. so i decided to experiment with ICs. i have tl072cn , mc4558, njm4558 and tjm4558cn. firs three work nice but last one, tjm4558cn makes really ugly noise with diodes off and leds. it works good with 1n914 and i dont know about zeners, but i guess result would be same as leds and off.

so be aware xD choose your IC carefully