Search found 32 matches
- Thu Jun 15, 2017 2:20 am
- Forum: Interesting Alternative Harmonica Ideas
- Topic: Rampless Chromatic Comb
- Replies: 14
- Views: 21328
Re: Rampless Chromatic Comb
The action is very smooth. I'd say it's a bit more slippery and light than my East top chromatic, and because the slide is made of pure PTFE/Teflon there are no issues with the slide sticking. I'm in the bad habit of playing while I'm drinking coffee with cream and sugar and wine and all that crud n...
- Wed Jun 14, 2017 4:24 am
- Forum: Interesting Alternative Harmonica Ideas
- Topic: Rampless Chromatic Comb
- Replies: 14
- Views: 21328
Re: Rampless Chromatic Comb
You nailed it. It's a quirky design with a rubber mouthpiece that rests directly on a PTFE/Teflon slide. The rubber mouthpiece is my simple method of creating an airtight mouthpiece assembly.
- Mon Jun 12, 2017 3:51 am
- Forum: Interesting Alternative Harmonica Ideas
- Topic: Rampless Chromatic Comb
- Replies: 14
- Views: 21328
Re: Rampless Chromatic Comb
Just got a batch from the machinist. This is the first time I've used a machinist and I am thrilled with the results!
- Thu Apr 27, 2017 1:48 am
- Forum: Interesting Alternative Harmonica Ideas
- Topic: Rampless Chromatic Comb
- Replies: 14
- Views: 21328
Re: Rampless Chromatic Comb
Hi Winslow, When I say ramps I mean the angled face that many chromatic combs have in the reed chamber like this. What is the purpose of these angled faces? I assume that it facilitates airflow into the reed chamber, but in the testing of my prototypes I haven't noticed a difference between an angle...
- Wed Apr 26, 2017 5:38 pm
- Forum: Interesting Alternative Harmonica Ideas
- Topic: Rampless Chromatic Comb
- Replies: 14
- Views: 21328
Rampless Chromatic Comb
I've designed a chromatic comb without ramps. I've tested some prototypes and I didn't notice a difference between ramped and rampless combs. What would be the negative effect of a rampless comb? Would the hard edges of a rampless reed chamber add noise when a player breathed into it? (I've attached...
- Sun Apr 23, 2017 3:41 am
- Forum: Interesting Alternative Harmonica Ideas
- Topic: The need for valves.
- Replies: 8
- Views: 13138
Re: The need for valves.
You can't use ultrasuede valves. They work in diatonics because they only lie on the bottom reed plate and gravity keeps them laying flat. They aren't stiff enough to hang upside down like they do in chromatics.
- Sat Apr 22, 2017 2:35 pm
- Forum: Interesting Alternative Harmonica Ideas
- Topic: Lipped comb & Hemholtz Resonance
- Replies: 6
- Views: 22511
Re: Lipped comb & Hemholtz Resonance
Hi Brendan, I was asking because I want to try a double-decker diatonic design that uses two stacked diatonics. I thought that narrowing the reed chamber might offset the extra distance added by the mouthpiece.
Best Regards!
David Pearce
Best Regards!
David Pearce
- Sat Apr 22, 2017 2:18 pm
- Forum: Interesting Alternative Harmonica Ideas
- Topic: The need for valves.
- Replies: 8
- Views: 13138
Re: The need for valves.
I have a half-valved Seydel chromatic with a mouthpiece assembly of my own design that is extremely airtight and I experimented with taking the valves off inside the comb. There was quite a drop in volume on the blow reeds and opening the gaps in them did not help. I've never tried this but some peo...
- Wed Apr 19, 2017 12:18 am
- Forum: Interesting Alternative Harmonica Ideas
- Topic: Lipped comb & Hemholtz Resonance
- Replies: 6
- Views: 22511
Re: Lipped comb & Hemholtz Resonance
Yes I did mean the width of the reed chamber, rather than the reed slot.
Thanks for the info!
David Pearce
Thanks for the info!
David Pearce
- Sun Apr 16, 2017 10:24 pm
- Forum: Interesting Alternative Harmonica Ideas
- Topic: Lipped comb & Hemholtz Resonance
- Replies: 6
- Views: 22511
Lipped comb & Hemholtz Resonance
I just saw John Cook machine a lipped comb with a mouthpiece that was further away from the comb than a standard diatonic. I know that increased distance can cause problems with the pitch of the reeds and their performance and I was wondering if this problem could be fixed by narrowing the width of ...