[Amps] 32 Volt LDMOS being superceded by 50 V?

[Patrick Barthelow]

Gentlemen:

Are 32 V  LDMOS amplifier transistors becoming scarce, or hard to find, as spares,  due to the newer 50V LDMOS taking over new designs?

I assumed they are still around because they are listed in Digi Key and other suppliers, but found out that they are disappearing from some Catalogs.
The question is raised, because a lot of  Amp Boards exist surplus with the 28-32 Volt devices.  Looks like maybe new Ham designs should migrate to 50 volt devices.  yes/no?  

I have a number of prototype boards from Pineapple Technologies with   BLF 861A  and BLF 872 32 V devices...


Best Regards,   
Pat Barthelow   AA6EG