Just picked up a Conn 20M for a steal. The Conn wasn't something I was actively looking for, but it was so cheap, and in such good condition that I couldn't pass it up. Being a student horn I'll probably give it to one of my kids.
Regardless, any time I get a new horn I give it a standard 'oil change' and once-over. This typically involves a disassembly and cleaning, pad inspection/replacement (where necessary), and upon re-assembly any necessary adjustment. Here are my observations:
Before disassembly:
--Horn sounds nice, even with the generic MP it came with.
--The action is effortless and is quiet (with the exception of the one key missing a cork).
--Chrome on some of the palm keys is beginning to wear down (so the horn has seem some play time)
During disassembly:
--I was happy to see that I didn't have to deal with any of the pivot set-screws. Anyone who's dealt with stuck set-screws knows what I'm talking about here.
--The funk I'm cleaning off of the tone-hole rims is green in color. This indicates a high copper content, which as I understand it is a good thing.
--None of the tone holes I've measured so far are wavy.
--The linkages are laid out in what appears to be a logical manner. The only linkage that might be slightly questionable is the Ab mechanism, where two springs compete with each other to open/close that pad. Seems to work.
--Pivots are tight, and so are the linkages that they hold.
--None of the rollers are stuck.
--Springs could be better, but appear to serve their purpose.
After assembly:
--Don't know yet -- haven't gotten that far.
I don't do this kind of work for a living, so I grant to those of you with more experience than I have in this arena that there may be much I don't know about this stuff. But it appears to me, after what I've seen so far, that this horn isn't as bad as the reputation it's getting online.
Is there something I'm missing? What is it that I don't know yet?
Regardless, any time I get a new horn I give it a standard 'oil change' and once-over. This typically involves a disassembly and cleaning, pad inspection/replacement (where necessary), and upon re-assembly any necessary adjustment. Here are my observations:
Before disassembly:
--Horn sounds nice, even with the generic MP it came with.
--The action is effortless and is quiet (with the exception of the one key missing a cork).
--Chrome on some of the palm keys is beginning to wear down (so the horn has seem some play time)
During disassembly:
--I was happy to see that I didn't have to deal with any of the pivot set-screws. Anyone who's dealt with stuck set-screws knows what I'm talking about here.
--The funk I'm cleaning off of the tone-hole rims is green in color. This indicates a high copper content, which as I understand it is a good thing.
--None of the tone holes I've measured so far are wavy.
--The linkages are laid out in what appears to be a logical manner. The only linkage that might be slightly questionable is the Ab mechanism, where two springs compete with each other to open/close that pad. Seems to work.
--Pivots are tight, and so are the linkages that they hold.
--None of the rollers are stuck.
--Springs could be better, but appear to serve their purpose.
After assembly:
--Don't know yet -- haven't gotten that far.
I don't do this kind of work for a living, so I grant to those of you with more experience than I have in this arena that there may be much I don't know about this stuff. But it appears to me, after what I've seen so far, that this horn isn't as bad as the reputation it's getting online.
Is there something I'm missing? What is it that I don't know yet?