The Defpom Forum, for RadioMods, S&M Software and Music by The Defpom

I was browsing through transistor specs and came across some cool looking transistors. I was woundering why someone couldn't put a MRF454 final in a radio such as the cobra 29, or is it posible? and would it require a lot of modifications. This thing puts out 80 watts. I have never taken an electronics course. I have been only playing around with some cobra 29s and turning them up a little. If finals like this could be used in a radio it would be a lot of fun.

The MFR455 (or equivalents) has been used in the President Lincoln radio, to replace the obsolete MRF477.

Is it possible to to modify a cobra 29 to take a MRF454? Has anyone tried?

Yes, its possible. You will need to mount it on a heatsink capable of dissapating the heat. It is easier buying a stinger board, that has the heatsink and circuit board included, however, I find the heatsink supplied too thin, so I always add more aluminum.

Thanks for the input guys. I was just curious.