Hello List and D.L. Bullock You said: "There was also the Wurlitzer system. I have a console from the thirties that looks normal, but you take off a board behind the "pinblock" to find there is no pinblock. The tuning pins go through the cast iron and the normally threaded end is split. There is a brass wedge driven into the split. This piano had a couple of loose tuning pins, and I found I could not remove the pin. I opened the back to find the odd arrangement. I drove the brass wedges in on those pins and voila! they were tight again. It works really well. I don't know why more pianos were not made using this system." John Brinsmead also used the bifurcated pins in their grands - but the pin blocks were normal wood ones. Works a treat doesn't it? Michael G (UK)
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