Total posts : 45366
No, not even for amplifiers. It isn’t stated in the rules that it is illegal to “possess” an amplifier. In fact, think of it this way. You just bought a Harris 50,000 watt AM transmitter on eBay and want to put it in your museum. The fact that it isn’t FCC certified under part 15 rules doesn’t make it illegal to possess.
§ 15.204 External radio frequency power amplifiers and antenna modifications.
§ 2.815 External radio frequency power amplifiers.