I have just connected my combo and... it works. I made simple version to check how it works. Without matching gain for + and - in ecc83 or in el84's. I want to listen to it few days to hear if changes will make a difference and also to let russian caps burn in. I didn't also put a volume control, when i listen from computer there is no such need. When i connected a cd player the volume is at maximum but i can hear no distortions. About the sound, i tried triode and ultra linear mode and by now i stay with ul. The bass is outstanding, i have to say that i never heard such deep low's. Of course in triode mode (grids with 100ohms to anode and 390ohms in cathode) the sound is more detailed but the bass is not as much convincing. In one sentence, i'm happy with my combo. Many thanks to All for help, when i make some interesting changes i'll post it here
link to schematic of working combo ImageBam
every electrolytic 100u/50v in cathode is bypassed with 0.1u MKP
link to schematic of working combo ImageBam
every electrolytic 100u/50v in cathode is bypassed with 0.1u MKP
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