Richard (and Andy), I can sympathize with your situation, since I have a similar one involving a Wurlitzer console of approximately the same vintage. As yet, my diagnostics are incomplete, due to circumstances, but I'll share my findings to date. I had already checked and dismissed numerous items, including some of those mentioned in your post. It was time for me to go behind the piano, and this is where I had to stop. At the time, I was recovering from a knee injury, and I got a quick reminder that I was still recovering when I attempted to move the piano away from the wall! I was able to see that there was no foreign matter collected at the bottom rear of the board. I was *not* able to check for glue integrity around the soundboard perimeter, or bridge and/or button integrity. The perimeter check is important. Sometimes the bond between soundboard and liner is okay, but glue 'whiskers' may create a bridge between the posts and board, causing undesirable results. On 'my' Wurlitzer, I also noticed a trap glued to the board. It looked like plywood, but again, I couldn't get sufficient access to explore this. I later suspected soundboard delamination. I called a couple of colleagues who had worked at Wurlitzer about this time, to determine whether the company was using laminate boards. They tried, but due to the age involved, indicated that this piano's age fell in the cracks, and could go either way on the laminate board question. I won't be seeing 'my' Wurlitzer for some time, but in your case, don't rule out these possibilities: glue 'bridges' and or separation from liner; wavetrap security and (laminate) integrity; and the possibility of the board being internally delaminated. I hope this is of some assistance. In any event, please keep us posted as to outcome! Regards/Jim Harvey ______________________________ Reply Separator _________________________________ I am trying to locate the source of a buzzing sound in a 30 year old Wurlitzer console. It is prominent on B27, a wound string, but it also occurs when other bass strings are played -- notably other B's or F#'s. The piano has been in Colorado since it was new, so major climate variation is not a factor.
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