For those which still need a replacement for the original Pluto TCXO and can no longer find the ABRACON ASTX-13-C-40.000MHz-I05-T
you can replace it by the ABRACON AST3TQ-T-40.000MHZ-28 with some advantages.
The only disvantage is that it costs a bit more. I am using it in two Plutos and works perfectly.
https://www.digikey.com/en/pro…TQ-T-40-000MHZ-28/5017694
73
Ed PY2RN