Posted by Keith C. on July 24, 2002 at 11:21:06:
I have a Sonora BBb 4v rotary ( B&S stencil, maybe PT1) made in Germany in the early 70's. I've read on the TubaEuph board that these horns may not have an actual receiver, just a sheath over the end of the leadpipe. Apparently, some owners of this horn have benfited from having a Yamaha receiver installed.
So,how can I tell if my horn has a real receiver or just the leadpipe/sheath set-up?
Has anyone else experience improved horn performance by installing/switching receivers?
Thanks for your help.