Pooh Bear wrote:
Steve Kavanagh wrote:

I'm looking for a data sheet for the 2SC2397

Shouldn't be too tricky to sub it. Low voltage ( by my standards ) npn 25W 50MHz
in TO-220 are a dime a dozen surely ?

Actually I think such devices characterized for RF PA use are getting a
bit thin on the ground with the CB craze over, most other HF
applications needing more power and low-VHF most often using integrated
modules or at least having the budget for real RF packages. But some
comparison with other data sheets might be useful.

I actually have some (and a source for more at a good price, though
production is not my intent) but was pondering if they could be
stretched to 50 MHz, so the data sheets for similar devices may not be
too applicable. Especially the MJE3055T !! I had noticed that curious
substitution suggestion !

Steve