Dapol class 121 / 122 decoder sound fitting Posted by Iain | Mar 15, 2018 | Youtube Videos | 0 In his latest update, Kevin demonstrates the process of Fitting an SWD sound chip to Dapol 121/122, plus there’s a quick look at the roundhouse build progress too. Gaugemaster DCC30 Prodigy DCC Accessory Decoder for Four Accessories Can Be Found Here Gaugemaster BPDCC22 Classic Decoder 8 Pin Micro Decoder Pack of 5 Decoders Here
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