MS4 Tech Notes TN0249 ACC16 Coupler for the Microstimulator System TN0213 Stimulator ringing on output waveforms TN0207 Stimulator output is noisy in Open mode TN0238 High Voltage LED on the MS4/MS16 flashes regardless of battery voltage when connected to the NC48 Rechargeable Battery TN0220 Stimulator control bits and relay switching bits not working after power up TN0244 Upgrade required for MS16s with serial numbers < 4000