Single Differential Non-feedback

Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
Hi, Lars,
:D Thanks. I made it years ago. But it is not for guys like you, since I'm still learning here.
Is there any problem with DC offset stability with single differential non-feedback power amp?

I also a question about other possibility. You like to put big RE (emitor resistor), like in differential to lower local gain. I learned here, that lower local gain can be also made by putting R from collector to base(with base resistor offcourse), to make local feedback. Is this a good option for making non-feedback power amp besides putting big RE?

It is nice that you share an equation of non feedback.
Gain is (R1+R2/330) * (R3+500) / 1000 with shown values approx 120.
R1+R2 (not R1//R2, right?)/330 I understand. The 500 comes from 1k DC pot/2, right?. But where the 1000 comes from?
 
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.