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WTB: fiberglass bell to fit 1931 Conn 40K

Postby jbaylies » Wed Feb 13, 2019 4:20 pm

seeking a fiberglass bell to fit my Conn 40K's body. I'm gonna superglue LEDs all over it.
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Re: WTB: fiberglass bell to fit 1931 Conn 40K

Postby iiipopes » Sat Feb 16, 2019 10:09 am

jbaylies wrote:seeking a fiberglass bell to fit my Conn 40K's body. I'm gonna superglue LEDs all over it.

Will a 22K bell fit?
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Re: WTB: fiberglass bell to fit 1931 Conn 40K

Postby The Big Ben » Sat Feb 16, 2019 12:37 pm

jbaylies wrote:seeking a fiberglass bell to fit my Conn 40K's body. I'm gonna superglue LEDs all over it.


Tenon diameter would help.
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Re: WTB: fiberglass bell to fit 1931 Conn 40K

Postby Kirley » Sun Feb 24, 2019 9:20 pm

iiipopes wrote:Will a 22K bell fit?


I just checked. Nope. The 22K bell tenon is just a little too small. Since the bell screws on these older Conns barely protrude through the collar, they require a pretty snug fit to do their job.

I'm sure you could make it work through some modifications, though. Thin sheet brass collar/shim? Swap out the original bell screws with some longer ones? (might allow for a leak at that point, though)

As far as I know, the 22K is the closest size fiberglass bell you can find for a 38/40K.

Good luck! Let us know how it goes. Can't wait to see the LEDs!
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Re: WTB: fiberglass bell to fit 1931 Conn 40K

Postby Kirley » Sun Feb 24, 2019 9:34 pm

The Big Ben wrote:Tenon diameter would help.


7 1/4"

I believe that is the tenon size listed for 38/40K, 20/22K, 2XJ. Unfortunately there is a slight discrepancy between the 20's and 30's horns and those that followed. The newer tenons have a groove that allows the bell screws to bottom out into. The earlier ones were smooth and really relied more on a tight fit with the screws just adding that little bit of extra grip. The discrepancy between the older and newer tenons is around maybe an 1/8" or 3/16"? Not much but enough to make them not plug and play.
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Re: WTB: fiberglass bell to fit 1931 Conn 40K

Postby jbaylies » Mon Feb 25, 2019 3:54 am

I may have found what I need viewtopic.php?f=4&t=87871
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