[Cathode Ray]

Thanks David, I think there might just be enough room above the dropper resistor, if I can find a way to mount it. Alternatively I could use an external trafo if it were small enough to be a wall plug type.

And Thanks Ed, I will send the details on PM.

Cheers Mike,
Yes the 3D printed worked out well since they match each other. Nobody here has even noticed. Its a pity about the lost Philetta's, they dont come up too often in UK or Ireland, most are sold in Germany.