I stucked on this schema,i got some voltage gain, but it isn't enough. So i recalculated a billion of times the values and i guess i do this wrong.
Attach some screens with info and schema.
So that is schema in Proteus
Schema with values
that is schema from the book(i changed diodes with resistor)
from book
in book used very old transistor MП-40(PNP) and MП-37б(NPN)
in proteus schema i used 2N2222 and 2N2907
this is signal level simulated, Yellow - out, blue - input.
signal
i ask for some help in calculations or if u can give me a direction where to move
Thank you for answers
Attach some screens with info and schema.
So that is schema in Proteus
Schema with values
that is schema from the book(i changed diodes with resistor)
from book
in book used very old transistor MП-40(PNP) and MП-37б(NPN)
in proteus schema i used 2N2222 and 2N2907
this is signal level simulated, Yellow - out, blue - input.
signal
i ask for some help in calculations or if u can give me a direction where to move
Thank you for answers
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