Yeah, he offers several phono preamp designs as you mentioned.
Decided to go for the JBL-based remembering our conversation regarding which sounds best.
I was also interested on the Fischer-based design, mostly because of its historic value.
You have tried it too. What do you think of its sound?
If I like what I hear with the JBL-based one I will try some more for sure.
PS: Also ordered the headphone amplifier, based on a design by Beslik.
Have an abundance of tube-based, solid-state and opamp headphone amplifiers but couldn't resist to add a germanium one to the collection.
I liked the sound of my Fisher TR-1 preamp clone.
It also showed a fairly good transient response on a 1khz/10khz/20khz meander (via a reverse RIAA circuit) .
Here are some graphs ( measured at the output of this phono preamp )...