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Finally the new Willson 2975 leadpipe and reciever arrived and with some rebending Rich Ita successfully fitted it to the old Marzan Euphoniuum. I think this is as close to the original I will be able to get. It really opened up the low register and I was really surprised at how well the compensating system works down to B2. I don't have to use any crazy fingerings and it is relatively well in tune. The upper register was not comprmised in the least. In fact the tuning has improved. The receiver is advertised as US Bass Trombone shank but all of my Bass Trombone MPs wiggle around a tiny bit. Any ideas?

tbn.al wrote:Finally the new Willson 2975 leadpipe and reciever arrived and with some rebending Rich Ita successfully fitted it to the old Marzan Euphoniuum. I think this is as close to the original I will be able to get. It really opened up the low register and I was really surprised at how well the compensating system works down to B2. I don't have to use any crazy fingerings and it is relatively well in tune. The upper register was not comprmised in the least. In fact the tuning has improved. The receiver is advertised as US Bass Trombone shank but all of my Bass Trombone MPs wiggle around a tiny bit. Any ideas?

Have your repair guy take a good look at it--it might be that there's a blob of solder where the receiver joins the leadpipe preventing a solid fit. Or the receiver could be out of round. A bass trombone shank fits my 2975 without any wiggle.

Scooby Tuba wrote:All bt mouthpieces are not created equal. Schilke style bass trombone shanks are different from Bach bass trombone shanks and Schilke mpcs will often wiggle in a Bach style receiver. Just a thought.

I'm using a Schilke 51D in mine--non wiggling.

Chuck gets the prize. There is in fact a blob of solder down there. I can see it. I'll take it back to Rich and ask him to clean it out.

tbn.al wrote:Chuck gets the prize. There is in fact a blob of solder down there. I can see it. I'll take it back to Rich and ask him to clean it out.

Do I get the "Miraculous Pangolin" prize?

Where DO you come up with this stuff?