The SRPP is a controversial circuit. Even its name is not set in stone, as it is called the SRPP, the SEPP, the mu follower, the mu amplifier, the cascoded cathode follower, and the totem-pole amplifier. Interestingly, the name given in the 1940 patent (US 2,310,342) for the circuit is seldom used: a "balanced direct and alternating current amplifier."
At the center of the controversy is two very different interpretations of how the circuit works. This is a bit paradoxical, as the circuit was seen as being quite simple and as having only one accepted explanation of functioning. (In fact, when the circuit appears in Samuel Seely's Electronic Circuits, it shows up at the end of a chapter in the quiz section. The circuit is seen as being so obvious that it is left to the first year electrical engineering student to derive a formula for the circuit's gain as a home work assignment.) In general, the circuit only appeared in mid-century engineering books when the subject was amplifiers whose DC operating points are immune to heater and B+ voltage drift. And seldom was the circuit described as being particularly linear or special. The exception is in Millman & Taub's Pulse and Digital Circuits,McGraw-Hill (1956); in section 3-17, The Totem Pole Amplifier, we read: