AC Gain Circuit

Thread Starter


Joined Apr 2, 2011
Hello I am an EET student seeking help on one of my labs. I have to design an AC gain circuit using transistors that meet the following criteria. Assume beta=200. It has to have a gain of 10 and work for a load resistor through 1k to 10k. The DC supply voltage needs to be around 15V and cannot exceed 200mA. I will get extra points for using 2 transistors. I have tried many different configurations but I am struggling to find a working configuration. Any tips would be appreciated.


Joined Dec 20, 2007
It is simple to have a gain of only 10.
It is simple to drive a 1k to 10k load.
It is simple to add one transistor or many transistors.

Show us what you tried.