I have one in my 1976 1 ton Chevy dually I use to haul my horse trailer
Have used it 3 times in emergencies. Worked fine.
Will NOT let go of it-—IT is an older model-—a FULL 5 watts.
In my college days, I worked at Lafayette Electronics in Memphis, Tennessee. Sold lots of 100 watt vacuum tube based linear CB amplifiers for, you know, educational purposes.