Laser RF Amp Circuit (PC Engine Duo) Updated Mar 15, 2026 · 16 min read · Support · 0 viewing 🔥 Most active page right now Previous Laser Tuning (PC Engine Duo) The PC Engine Duo can be tuned with many potentiometers. Setting them strategically and in order i... Next 📄 Internal Memory Backup RAM (PC Engine Duo) The save states are stored in internal volatile memory, that is kept alive via a capacitor. If you g...