Original sentence: A similar "legacy" mode popular with home constructors is amplitude modulation, pursued by many vintage amateur radio enthusiasts and afficionados of vacuum tube technology
Edited sentence: A vintage facet of the hobby involves the use of Amplitude Modulation on shortwave.Hobbyists here pursue vacuum tube technology and utilize a form of radio reception and transmission dating to the first "voice" signals ever heard on the airwaves.The popularity of this part of the hobby is much like the old car hobby, where heritage is ranked more important than modern efficiency