Those transistors are similar I guess to the MR454. The MR454 transistors are are rated at 80 watts at 12.5vdc at 30mhz per the data sheet. The wattage will be a bit higher on 27mhz, maybe 85-90 watts. Amp on 14vdc in the mobile that amp should do about 400+ watts depending on hard it's driven. I would stick with the cobra 29 or a similar type radio even for SSB use a single final radio will work well with that amp. Have fun with it!!


Sent from my iPhone using Tapatalk