I know, I can replace with 2n5952?The schematics I see on line show the JFET as 2N5457. This is available ex-stock from Mouser
It might work, but the IDSS and gfs is quite different and not overlapping, so circuit values would likely need to be adjusted to make it work the same.
If you are asking this question, that suggests that you want to know if it is a drop in replacement, to which the answer is no
If you are asking this question, that suggests that you want to know if it is a drop in replacement, to which the answer is no