Circuit Building Blocks
From Steak Wiki
The goal here is to have a page of various transistor circuits, but for now I'll include op amps.
They should be simple enough that you could combine them in a larger design (i.e. as part of an op amp or ASIC). I'm not going to include fundamental circuits (such as: https://en.wikipedia.org/wiki/Template:Transistor_amplifiers)
These are sometimes called Topologies. Like a map. A map topology. If maps lie, then it's likely these circuits will lie as well. Expect any examples to be missing required components to work.
Transistor Circuits
Programmable Unijunction Transistor Sawtooth
Make Electronics: Learning by Discovery, Charles Platt
