help me in finding the voltage gain of this circuit!

tajnia_f · Jan 15, 2011

please help me in finding the voltage gain og this circuit.i just know that the feedback is voltage-voltage!
i have no time...thanks a lot in advance

**broken link removed**

to see the picture in bigger size go to this link:
https://www.eca.ir/forum2/index.php?topic=47424.0

Sceadwian · Jan 15, 2011

You're joking right?
Aside from this being homework that picture is so small there's nothing to work with.

tajnia_f · Jan 15, 2011

**broken link removed**

tajnia_f · Jan 15, 2011

Sceadwian said:
You're joking right?
Aside from this being homework that picture is so small there's nothing to work with.

there is a new pic

Nigel Goodwin · Jan 15, 2011

It doesn't make any sense, it's drawn wrongly.

tajnia_f · Jan 15, 2011

i think the Q7 should be pnp.am i right?and whats the answer then?

tajnia_f · Jan 15, 2011

Nigel Goodwin said:
It doesn't make any sense, it's drawn wrongly.

i think the Q7 should be pnp.am i right?and whats the answer then?

Nigel Goodwin · Jan 15, 2011

tajnia_f said:
i think the Q7 should be pnp.am i right?and whats the answer then?

That's not the only mistake, it's not a working circuit, so you can't calculate the gain.

tajnia_f · Jan 15, 2011

Nigel Goodwin said:
That's not the only mistake, it's not a working circuit, so you can't calculate the gain.

i were not the designer,i don't know... but thanks however dear Nigel!

Nigel Goodwin · Jan 15, 2011

tajnia_f said:
i were not the designer,i don't know... but thanks however dear Nigel!

Have a look at a proper circuit, to see what's wrong - although this is a little more complicated, and higher power.

Power Amp Circuit - 200Watts/RMS by AmpsLab

tajnia_f · Jan 15, 2011

Nigel Goodwin said:
Have a look at a proper circuit, to see what's wrong - although this is a little more complicated, and higher power.

Power Amp Circuit - 200Watts/RMS by AmpsLab

ok...right now.thanks

help me in finding the voltage gain of this circuit!

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