They span a wide range of voltage gain and transconductance.
Consequently, higher voltage gains from a single tube became possible, reducing the number of tubes required in many circuits.
It has a voltage gain of unity (+1 in the schematic).
In addition to the above, R causes ac feedback which reduces the voltage gain of the amplifier.
However, this inverter also suffered from a very low voltage gain.
Practical uses for these circuits are limited by the very small voltage gain they exhibit.
An emitter-follower will have a voltage gain of just under 1.
Then collecting terms the voltage gain is found as:
But when R increases, the voltage gain of the converter decreases compared to the ideal case.
So that the overall voltage gain of the DA is:
