This is a genuine RF engineering experiment from a small channel, building a Class-A amplifier for the 55.250 MHz "Magic Band" — a slice of spectrum near the 6-meter amateur band that's prized for unusual sporadic-E propagation. The build pairs two notable RF parts: the BGY888, a wideband cable-TV hybrid module historically used in CATV distribution amps, with the RD15HVF1, a Mitsubishi MOSFET designed for HF/VHF service up through 175 MHz. Combining a hybrid driver with a discrete MOSFET final is a classic topology, and seeing it laid out at the bench is a useful lesson in how RF power stages cascade.

What makes this worth the watch is the comparison the title promises: 10W in narrowband FM versus 3W in amateur TV (ATV) mode. That gap isn't arbitrary — it reflects how linear an amplifier must be to pass a video carrier with sidebands intact, versus a constant-envelope FM signal where you can run the device closer to saturation. If the creator walks through bias setup, output network tuning, and why ATV forces you to back off, this is exactly the kind of hands-on RF content that's rare on YouTube outside of a few well-known ham channels.

At 210 subscribers, this builder deserves more eyes — small-channel RF experimenters keep practical radio knowledge alive.