How to convert N Gauge Graham Farish Double Digihat to DCC

Many of the original Poole-made Graham Farish diesel and electric models had a similar arrangement to their steam counterparts, but with both the upper and lower brass bushes live to the chassis. While the steam locos only required the lower bush isolating with a digihat, these models need both.

A more modern version of the chassis made sometime in the mid-nineties, resembles the later China-era split chassis arrangement, but still employed the two brass bushes that require replacement with digihats.

For full step-by-step instructions, see Class 43 HST Poole chassis double digihat conversion guide.