Hello Op Amp Experts,

Below is a picture of a post-741 input stage, I'm not sure which amp this belongs to, has anyone seen this before?

...I am also generally confused on how to find the transconductance gain (i_o/v_id) and the input/output resistances, can someone offer advice?

Thanks for any feedback.

JT

 

Wikipedia has some notes on the internal circuitry of the LM741 amplifier type.

http://en.wikipedia.org/wiki/Operational_amplifier