Question
Hi
bought Mb Crossover Harmonica Eb
Normal harmonica in all holes Heard ok
Successful bend all the holes except the third hole
third hole Tone plays fine , Whan bent biz sound starts.... or blocked
Try to open and plink it sound ok
What do you suggest to try to fix it ,Or contact the store
Thanks
eli
Good job Eli,
With the cover plates removed:
Try dropping the gap of blow reed #3 a little bit. You can do this without removing your reed plates from the comb. Carefully insert your right angle brass hook (the opposite end of your Hohner, Hering, or Lee Oskar plinking tool) into hole #3. Wiggle your tool until the right angle tool pushes the reed up through the reed plate--you can even reach around and pull the tip of the reed up "slightly". This will close the gap of the blow reed.
Return the cover plates ... and draw bend on the #3 hole. If it responds better, but not quite enough ... repeat the above procedure.
As a playing technique:
Attempt to hump the back of you tongue (pressed up against your upper molars) higher and further back in your throat (watch for the auto gag response). This will tune your mouth closer to the Db, C and B pitches you are attempting to play. Remember, if you do not feel the side walls of your tongue pressing up against your molars--your tongue is too flat in your mouth and WILL BE OUT OF TUNE with the desired pitches ;o)
Your Harpsmith,
Kinya
Hello Eli
I viewed your pictures--of your draw reeds--and the reed profiles appear to be perfect. Can you give me close-up pictures of your #3 BLOW reed?
Your Harpsmith
Kinya
Hi Eli,
With these close-up picture of the DRAW reeds, I can now see that the #3 reed gap is actually too high. Lower it to match the #2 reed gap (.006)
Will you be sending a photo of the BLOW reed #3?
Your Harpsmith,
Kinya
Hi Eli
After reviewing the photo of your BLOW reed plate, I have determined reeds #1, #2, and #3 are all too high. Lower the gap by pressing on the rivet ends of the reed. Follow this up with a healthy dose of "plinking" to settle the metal into it's new profile. Then reassemble and give it a try.
Your Harpsmith,
Kinya
Hi Eli
Don't be too concerned with the tarnish (oxidation) of the brass. All brass reed plate harmonicas will do this and will not impact the play-a-bility of the harmonica. It is just a cosmetic issue.
High end harmonicas will have chrome plating over the brass (e.g. Suzuki Fabulous), but again strictly cosmetic. I have not found any sonic improvements with this process.
Having said that, if it still drives you crazy--and you have the time--"carefully" polish the reed plate with Happich SemiChrome. STAY AWAY FROM THE REEDS! It is the best metal polish I have on my bench. http://www.simichrome-polish.com/
Your Harpsmith
Kinya
Hi Eli, Hi Kynia,
I attended a course in Trossingen in November 2012. They strongly advised us against polishing the reed plate. The reason is that the oxidation of the brass (alloy of copper and zinc) becomes a protective coat, unlike iron which will be completely guzzled
All the best,
Eddy
Terrific stuff Eddy!
Hi Eli
You can thank us by continuing to communicate your thoughts about you and your harmonicas.
Your Harpsmith
Kinya
Hi Eli
Thanx for your question.
Just so I can get a base line ...
(a) Does it misbehave for all three bends on the 3 draw?
> half step bend (Db)?
> full step bend (C)?
> Step and a half bend (B)?
(b) Are you able to repeat this situation with a D, or Eb Hohner harmonicas within the same Marine Band family (including:2005 Deluxe,1896, Special 20)?
Let me know ...
Your Harpsmith,
Kinya