Moritz Voegeli
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  • Winterthur, Zurich
  • Switzerland
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Moritz Voegeli's Discussions

Induction Pickup Thread Reconstructed

Started this discussion. Last reply by darryl kernaghan on Thursday. 46 Replies

Let's gather what we remember about the original induction pickup thread. For Joseph J. Rogowski's contributions see …Continue

Tags: design, transformer, pickup, induction, alumitone

What do you mean with «sounds great»?

Started this discussion. Last reply by Wayfinder May 6, 2016. 113 Replies

Let's take my 4-string CBG from a Camacho box as an example: acoustically it doesn't sound at all, but with two Power Rails from GuitarFetish even with a simple amp with volume and gain only it…Continue

Tags: pickups, acoustic

 

Moritz Voegeli's Page

Latest Activity

Moritz Voegeli replied to Greg G's discussion Why build with the lid on top??? in the group Building a Cigar Box Guitar 101
"I work a lot with simple but well sounding partagas boxes and I prefer to use them bottom up: the lid is 6.5mm, the bottom 4.5mm which gives the better sound board; another advantage: you can open the box without removing the strings. For me…"
17 hours ago
Moritz Voegeli joined Shane (www.ShaneSpeal.com)'s group
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Building a Cigar Box Guitar 101

This group is for discussing the basics of CBG building for newer builders - where to start, what to do, common pitfalls, tips and techniques.Keep in mind that new builders can find other great informative articles on CBG building, as well as most of the parts you'll need, over at C. B. Gitty Crafter Supply!See More
17 hours ago
Moritz Voegeli replied to Snuffy Smith's discussion Blues and Exotic Scales for CBG...
"Yes, true for archaic North Mississippi hill country blues without chord progression, otherwise not correct: A simple 12 bar blues has the structure abaa/bbaa/cbac.If the «a» bars are key of G, use the G scale for them, for the…"
Friday
Moritz Voegeli replied to Patrick's discussion Questions about my first build
"You found a nice box, wooden camacho boxes are becoming rare now... Once you have positioned the bridge correctly, I would try to fix the ninth fret issue first before you start to lower the strings: is there just this fret a bit higher than the…"
Thursday
Moritz Voegeli replied to Chris's discussion Need advice
"What's your scale (nut to bridge), how do you want to tune the box, and which string gauges do you use?"
Thursday
darryl kernaghan replied to Moritz Voegeli's discussion Induction Pickup Thread Reconstructed
"That is not my work Donald, just a re post from elsewhere i found to help Moritz try to renew the original thread, somewhere in that 200 odd pages, your patents were presented and discussed, the electrical theory got a little deep for me at times…"
Thursday
Moritz Voegeli replied to Moritz Voegeli's discussion Induction Pickup Thread Reconstructed
"Donald hi, from the beginning was straightaway clear, that there's no chance to reverse-engineer the alumitones: from the tiny thing underneath the alumitone humbucker you pull out 3.4K, without the need of an additional impedance matching…"
Wednesday
Moritz Voegeli replied to Moritz Voegeli's discussion Induction Pickup Thread Reconstructed
"Holy Cow! Even Lace Pickups is getting in on Cigar box guitars, added by BeetleJuice! on January 21, 2017http://www.cigarboxnation.com/video/holy-cow-even-lace-pickups-is-g..."
Wednesday
Shane (www.ShaneSpeal.com) replied to Moritz Voegeli's discussion Induction Pickup Thread Reconstructed
Wednesday
Donald Lace replied to Moritz Voegeli's discussion Induction Pickup Thread Reconstructed
"Hey Darryl: A lot of reverse engineering time could have been saved if you just looked up our patents at the PTO in regards to the Alumitone technology.  And I might add if anyone would like to just buy one you can check out our Matchbook…"
Wednesday
Moritz Voegeli replied to Shane (www.ShaneSpeal.com)'s discussion MYSTERY INSTRUMENT: What are these antique dulcimer things?
"Why just an «Epinette des Vosges» and not another member of this widespread family of instruments?"
Wednesday
Moritz Voegeli replied to Moritz Voegeli's discussion Induction Pickup Thread Reconstructed
"Yeah Darryl, but the idea is to reconstruct the essentials of the thread even for those without any knowledge of the lost threads. Let's hope for the first detailed DIY cookbooks for further discussions."
Wednesday
darryl kernaghan replied to Moritz Voegeli's discussion Induction Pickup Thread Reconstructed
"Anyone with any knowledge of the initial thread should be aware that Turtlehead introduced us to Joseph's work very early via Greg's garage, and i think Oily found his postings from other sites"
Wednesday
Moritz Voegeli replied to Moritz Voegeli's discussion Induction Pickup Thread Reconstructed
"Great thanks Darryl for the posts, with the comments of Joseph J. Rogowski we have now a good deal of the information we've lost. An additional remark: the first post of the initial thread was «the alumitone be technically a…"
Wednesday
darryl kernaghan replied to Moritz Voegeli's discussion Induction Pickup Thread Reconstructed
"found on another site, a pretty fair summary without all the false trails, it leaves out a bit, but the essence is there, hope it helps anyone interested    On another board I had posted a terrific article detailing the work of about a…"
Wednesday
darryl kernaghan replied to Moritz Voegeli's discussion Induction Pickup Thread Reconstructed
"found on another site, a pretty fair summary without all the false trails, it leaves out a bit, but the essence is there, hope it helps anyone interested    On another board I had posted a terrific article detailing the work of about a…"
Wednesday

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I don't remember, times ago
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8
What do you find most interesting about cigar box guitars? (If you do not enter something meaningful here, your membership may be rejected).
low level access to music

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Moritz Voegeli's Blog

Treasures of the Museum of Appalachia

Posted on April 7, 2017 at 5:01am 0 Comments

Someone out there living near Clinton, Tennessee, site of the Museum of Appalachia, with its great collection of traditional musical instruments? For a first impression, check the documentation about this treasure on http://www.cigarboxnation.com/video/museum-slideshow.

To study the details of the presented instruments, to refer to a single instrument, a busy slide show is far from ideal, it would be…

Continue

Scarf joint jig for kitchen workers

Posted on March 31, 2017 at 2:30am 2 Comments

For newbies who are not skilled to get a straight cut at a small angle without support, but are willing to learn the zen of letting the saw do its work, here is a DIY tool that helps your work and trains your skills:

Poor man's kitchen workbench:
The saw: japanese saw which…
Continue

Kuvat sippiviulusta? Photos of a finnish lumberjack's «sippiviulu»?

Posted on November 17, 2016 at 2:57am 2 Comments

Finnish lumberjacks played on their camps an instrument similar to One String Sam's diddley bow, sometimes in duett with a crosscut saw.

For finnish followers I add here descriptions I found on internet:

sippiviulu - säilykepurkista, laudanpalasta ja kitaran tai viulunkielestä tehty savottajätkän soitin.

Olen jopa nuorena nähnyt sahan soittoa sekä sippiviulun soittoa duettona. Sippiviuluhan on laudan päälle viritetty peltipurkki jonka yli menee rautalanka…

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Vintage homemade Stroh violins aka phonofiddles

Posted on November 9, 2016 at 7:34am 1 Comment

http://www.palmguitars.com/item.html#1529

http://www.palmguitars.com/item.html#1530

Just another type of resonators, based on gramophone pickups

Comment Wall (8 comments)

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At 2:33pm on April 21, 2017, Joseph J. Rogowski said…
It was probably intended to say something like measured electrical output. That is the problem with an ipad tablet touch screen keyboard. Sorry for the confusion.

Joseph J. Rogowski
At 1:01pm on April 21, 2017, Joseph J. Rogowski said…
If you want to know the total output impedance of your current transformer pickup without an LCR meter, just assume that the shorted primary of the CSE-187L current transformer is 80 Ohms, then just add the resistance of the added string loop wire to get the new output impedance with the string loop. Here is an example. Adding a 6 inch hairpin loop to the CSE-187L adds 105 micro ohms per inch for a total of 630 micro ohms. Now multiply 630 micro ohms by 250,000 or 500 squared (turns ratio squared) to get 157.5 ohms. Add this to the 80 ohms of the shorted primary to get 237.5 ohms as the new output impedance.

Just using this method you can calculate the output impedance of your current transformer pickup and not need an LCR meter.

If you are feeding an XLR mic input that has an actual input impedance of 2400 ohms, then you want to target the output impedance of your cuttent transformer pickup to be about one tenth of the actual XLR mic input impedance of about 240 ohms.

This technique just allows you to predict the outcome of using various string loop wire gauges and lengths.

I hope this helps.

Joseph J. Rogowski
At 4:00pm on March 25, 2017, Erasmo Coco said…

I agree with you Moritz.

At 2:50am on February 14, 2017, darryl kernaghan said…

Hi Moritz, sadly, it doesn't surprise me, the problem with those threads is the person who initiates them can remove them at any time, taking everyone elses input with them, not the first time it's happenned, it's a pity as there was some good stuff on there, some i wanted to reference again at some time. I try not to get paranoid about these things, but there seems to be a pattern.

At 9:54am on February 13, 2017, Ron "Oily" Sprague said…
All I can say to this is that most of us are lazy. It takes time to go back and verify things one thinks one sees or remembers, and not everyone may be as scrupulous as that. However, Wayfinder did finally go back and look, and changed his opinion.
At 9:52am on February 13, 2017, Ron "Oily" Sprague said…
That's weird, Moritz. Did you somehow get blocked on that discussion? Ask Dan Sleep to look into it, as he is one of the site admins.
At 5:46pm on February 10, 2017, Walter Haapapuro said…

I suspect that most people are more interested in building a pickup, but, I can appreciate your desire to insure that credit is given where it's due.

Walt

At 2:38pm on February 10, 2017, Walter Haapapuro said…

I'm afraid I didn't pick up any Finnish as a kid, I could be persuaded that my post was a bit hasty.  People are excited about building a 'new' kind of pickup, does hyper analysis of who had what idea first help them physically make a pickup?

Walt

 
 
 

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