Is there any non-gimmicky reason to have these holes drilled?
https://www.ebay.com/i/142771701744?rt= ... 2771701744
Strange MP
- TubaDude
- bugler
- Posts: 106
- Joined: Fri Mar 19, 2004 1:03 am
- Location: USA
Re: Strange MP
The holes are the connection point for a contact microphone. There's a black rubber "o" ring inside that holds the contact microphone. They pretty much sucks compared to the barcus berry system.
TubaDude
1909 King Helicon with 4th Valve Added
1913 York 4 Valve Eb/C Helicon (for sale)
1909 King Helicon with 4th Valve Added
1913 York 4 Valve Eb/C Helicon (for sale)
- Doug Elliott
- pro musician
- Posts: 611
- Joined: Wed Nov 12, 2008 8:59 pm
Re: Strange MP
Drill them out and install a spit valve.