I quite like occasionally buying and putting together little kits. One recent acquisition was a pair of PCBs for a JFet phono stage. I’ve been aware of a phono circuit called the Pacific based on 2sk170s.
The very neat, nicely made boards turned up and I began gathering together the bits I didn’t have already. I had a couple of supposedly well matched and kosher GR grade 170s which would do for the first stage but I also had a bag of 10 of somewhat unknown provenance. I’d also, a while back, bought a kit for a FET testing device.
A very basic but perfectly good enclosure arrived so I fitted sockets, ground post and some mounting points for the two PCBs.
Empty board
Stuffed board
This evening I finished the second board. This design runs from 18v so to begin with I’ll run it from a pair of stacked 9v batteries and see how we get on. Hopefully it’ll be running tomorrow. I’m not expecting this to be as good as a Vida or one of the valve stages I use but I’m interested to see how well it does go. I like that they intended for it to use paper in oil caps and I fortunately had some of the Russian ones here already. There is also a JFet headamp circuit called Le PrePre which is similar in concept so if this is OK I may try that.
