This circuit was found in a Hands-On Electronics from the 90's. The FET can be any general purpose.
This interesting circuit that can use modern equivalent transistors like the BF245 and BC548 was...
This oscillator does not carry any resonant circuit, except for the one formed by the crystal...
Carefully removing (and a lot of work) the cover of a metallic 2N3055 to expose its joints it...