Modding a Eb Helicon to Bb Helicon

Projects, repair topics, and Frankentubas
Post Reply
User avatar
MrTubaChacon
Lurker
Posts: 5
Joined: Mon Nov 27, 2023 10:38 am
Location: West Covina, CA
Has thanked: 2 times
Been thanked: 0

Modding a Eb Helicon to Bb Helicon

Post by MrTubaChacon »

Hello!

I wanted to ask and see if anyone would know if it's possible to mod a 1955 Eb Helicon to a Bb Helicon, I made a post about this Helicon and the "problems" it has but thought I would get insight on this and see if this is something even doable.

Please let me know would love to get other technicians' opinions and see how I can go about this! :cheers:
Attachments
IMG_6198.jpg
IMG_6198.jpg (181.38 KiB) Viewed 376 times


User avatar
Schlepporello
Posts: 541
Joined: Wed Aug 12, 2020 11:12 pm
Location: Amarillo, Texas
Has thanked: 11 times
Been thanked: 15 times

Re: Modding a Eb Helicon to Bb Helicon

Post by Schlepporello »

While I am certainly no tech, I do know that a lot of tubing would have to be soldered in to make the conversion to BBb. Not only to the main body of the horn, but to the journals as well. Is it possible? Yes, if you have the cash. Is it advisable? I wouldn't do it. To me, it would be easier to find a Helicon already pitched in BBb.
These users thanked the author Schlepporello for the post:
MrTubaChacon (Tue Dec 19, 2023 10:34 pm)
TubaForum.net Friendly Neighborhood Moderator
There are three things that I can never remember.
1)...................?
OK, make that four.
Dents Be Gone!
Posts: 596
Joined: Thu Apr 06, 2023 5:13 am
Has thanked: 166 times
Been thanked: 147 times

.

Post by Dents Be Gone! »

I agree, guys. This is the way to go.
Last edited by Dents Be Gone! on Wed May 01, 2024 11:21 am, edited 1 time in total.
The Big Ben
Posts: 409
Joined: Thu Aug 13, 2020 12:38 pm
Has thanked: 34 times
Been thanked: 62 times

Re: Modding a Eb Helicon to Bb Helicon

Post by The Big Ben »

Just pondering....

If the tubes must be altered for pitch, why not shorten it more and put it in F?

In the other thread on this, it was suggested that this horn needed "tuning bits" and that the absence of said bits would cause it to play high. You could give that a try by making a "tuning bit' out of flexible plastic tubing and adjust the length of the piece of tubing to see if it could be put into tune. If it could be, then look for tuning bits or have one made.
User avatar
Tubajug
Posts: 745
Joined: Thu Aug 13, 2020 10:27 am
Location: Nebraska
Has thanked: 224 times
Been thanked: 202 times

Re: Modding a Eb Helicon to Bb Helicon

Post by Tubajug »

Here's how I converted an Eb helicon to a BBb helicon:

I sold my Eb helicon.

I converted a BBb sousaphone into a helicon. :tuba:

Like others have said, that's a lot of tubing to add with very questionable results. I liked my Eb helicon (very sweet sound and super easy to play and hold), but it lacked the "punch" or "presence" of a BBb horn, so I got a BBb one.

Good luck!
Jordan
King 2341 with Holton Monster Eb Bell
King/Conn Eb Frankentuba
Pan AmeriConn BBb Helicon
Yamaha YBB-103

"No one else is placed exactly as we are in our opportune human orbits."
User avatar
bloke
Mid South Music
Posts: 19294
Joined: Thu Aug 13, 2020 8:55 am
Location: western Tennessee - near Memphis
Has thanked: 3844 times
Been thanked: 4088 times

Re: Modding a Eb Helicon to Bb Helicon

Post by bloke »

Raise the E flat up on a lift, and run a B flat up under it.
Grumpikins
Posts: 423
Joined: Sun Nov 20, 2022 3:09 pm
Has thanked: 6 times
Been thanked: 104 times

Re: Modding a Eb Helicon to Bb Helicon

Post by Grumpikins »

That horn looks fantastic. I would try to sort out the tuning issues with as little modification as possible.

Sent from my SM-S367VL using Tapatalk

Meinl Weston 2145 CC
King Symphonic BBb circa 1936ish
Pre H.N.White, Cleveland Eb 1924ish (project)
Conn Sousaphone, fiberglass 1960s? (Project)
Olds Baritone 1960s?
Hoping to find a dirt cheap Flugabone
:smilie7:
Post Reply