Both chips have been tested and work well with functions working correctly. Both chips have been reset to number three and come with their fitted speaker included.
Hornby - R7147 TTS Decoder Princess Royal Class brand new
Hornby Digital Sound Decoder R8106 TTS Sound Decoder Class A1 / A3 Mib
Bass Enhanced Speaker Upgrade Ideal, For Hornby Class 60 TTS Decoder R8104 8 Ohm
Hornby R8121 TTS Sound Decoder Class 66 New, Old Stock
Hornby R8108 TTS Sound Decoder Class A1 Tornado New, Old Stock
Hornby R8119 TTS DCC Sound Decoder with 8-Pin Plug and Speaker for BR Class 40
