THe only place I buy RF transistors from is RFparts, Digikey, Mouser, Kitsandparts, and Jameco.
When it comes to oddball or scarce parts its RFParts as they do stand behind theirs,??
RD16HHF there is 4.75 last I looked.? That is a fair price for them.?
The last bunch of IRF510s were Vishey from Digikey, paid under 10$ for 10 of them.
There is no bargain if you buy fakes and then have to buy the real ones.? Then there
is lost time and potential for damage from fakes.
Allison