This is one of the designs in a vacuum tube amplifier patent filed in 1949. The first gain stage (V1 & V2) forms a type of mu-follower.
You can download and read the entire patent to find out more about this circuit.
The circuit can be converted to work with jfets, as shown here. Use 1M for R1 and R3, 1k for R2 and a 5k trimpot for R4.
The trimmer should be adjusted until the dc voltage at the source connection of Q2 is 5.0v (+/-0.5v). Start with it set for about 1k between the wiper and Q2′s source.
The circuit has a lot of gain, so it may not be a totally clean boost, as it can run out of headroom rapidly when powered by a 9v battery. If you try this design, let me know your results.