The Palomar Elite TX5500 Linear Amplifier is a 350-400 watt PEP linear amplifier utilising 4x MRF455 transistors and a RX pre-amp. As with all linear amplifiers the pre-amp is very fragile and often they stop working at the drop of a hat. The TX5500 was a very popular little amplifier back in the 70's and 80's on the CB band and would quite easily add an extra 3 S points or so to a users signal.
Palomar Elite TX5500 Schematic Diagram - here is a full schematic diagram of the TX5500 which will hopefully prove useful to anyone wanting to fault find or modify the amplifier. If you have any mods or tips about this amp then please dont hesitate to share them with us. The Palomar company has been around for well over 50 years and are still going strong. You can visit their website here: Palomar