Zetagi B-300P Need advice on amp installation

[Captain Kilowatt]

MRF455 datasheet(1/4 Pages) MOTOROLA

1MRF455MOTOROLA RF DEVICE DATAThe RF LineNPN SiliconRF Power Transistor. . . designed for power amplifier applications in industrial, commercial andamateur radio equipment to 30 MHz.• Specified 12.5 Volt, 30 MHz Characteristics —Output Power = 60 Watts Datasheet search, datasheets, Datasheet...

html.alldatasheet.com

Motorola shows matched pair rating of 175 watts out...

275 watts input (20-amp x 13.8v)
Zetagi shows 200 watts AM/FM ...Output
This would require amp to be 73% efficient

Up to 400 watts SSB.
Hmm on a 20-amp supply. OK

https://www.g7syw.com/files/zetagi-b300p-schematic.pdf

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Something interesting here... 275 watts input (20-amp x 13.8v) = 400 watts out.

http://www.cbradio.nl/zetagi/Manual_Zetagi_B300P_ENG_ITA.pdf

It's a CB amp. The laws of physics and electrical engineering do not apply.

 

[Miura]

It's a CB amp. The laws of physics and electrical engineering do not apply.

Only blind faith!…it does work believe it or not.