New SE-3 MK IV High-Fidelity synchro-phase Detector

Eliminates Selective-Fade Distortion and Garbling Able to Receive One Sideband at a Time to Minimize Interference. SE-3 MK III D Introducing a whole new world of shortwave and broadcast reception with the new Sherwood SE-3 Mk IV phase-locked AM product detector. Even with the evolution of modern-day communications receivers, with their improved stability, selectivity, and…