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Vincent Biancomano

Where Acoustic & Analog Still Rule the Roost

Vincent Biancomano
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Navelpluis
Navelpluis
9/26/2013 5:14:54 AM
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Artist
Guitar string Dilbert 'The Nack'
I remember myself as a 14 year old. My neighbour played guitar and he had some old strings left. I decided to drilli a couple of holes in my (new) worktable to be able to get the strings straight with some pieces of metal to support them. An old relay coil was my pickup coil. The Stones "Tatoo You" was my source of 'sliding guitar' inspiration.

I guess the combination of the mechanical, home build amplifier and the enjoyment of trying to play some tunes was the source of getting 'the nack', just like Dilbert ;-)

He came by and asked me how I created my "Damn Fat Fuzzy Sound", well, that was just bad design from my first amplifier trials. At that time I could not put a finger on it why it was so nice. But he found the sound was great!

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samicksha
samicksha
9/21/2013 4:15:52 PM
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Artist
Re: Mechanical/Analog--Waveguide Filter
You are right @netcrawl: Waveguide filters seems more in common with transmission line filters, they do not contain any discrete capacitors or inductors. The design of waveguide filters frequently starts from a lumped element design and then converts the elements of that design into waveguide components.

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Netcrawl
Netcrawl
9/20/2013 8:34:21 PM
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Master
Re: Mechanical/Analog--Waveguide Filter
It's really a cool stuff, waveguide filter is not hard to build ( in fact we can build it in our own garage) and results are predictable, I believe there's a strong to design a really high performance filter, with multiple sections.

A feature of waveguide filter design concerns the mode of transmission, waveguide filters have much more similar with transmission line filters than lumped element filters; they do not contain any discrete capacitors or inductors.  

 

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vbiancomano
vbiancomano
9/20/2013 8:01:48 PM
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Blogger
Re: Mechanical/Analog--Waveguide Filter
@eafpres---Curiously enough, I believe there was a connection between the waveguide filter and the mechanical filters that were developed at Collins Radio. Although I have no knowledge of the interplay, beyond a term common to both subjects, the "resonator."   

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eafpres1
eafpres1
9/20/2013 6:54:56 PM
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Mechanical/Analog--Waveguide Filter
@Vincent--did you ever encounter any waveguide filters in any of these applications?  They have been around for a long time, but aren't seen much in all the miniaturized electronics these days.  I think the idea of waveguide filters is really cool.  I visualize EM waves, traveling in multiple modes, interacting in resonant cavities and elegantly filtering out noise with no passives or actives at all.  You can't get much more mechanical/analog than that.

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More Blogs from Vincent Biancomano
Ever expanding engineering curricula have future engineers racing through all the technologies in the classroom but may not leave them much time for learning how to apply them at ground level.
Ever-expanding engineering curricula have future engineers racing through all the technologies in the classroom but may not leave them much time for learning how to apply them at the ground level.
Who's got a professional audio lab, the desire, and the time to inspect my files and make a determination, gratis?
Now we'll step up to an example where you can simply gauge how a given design proposal might fare even before you apply the meat of the design equations.
Developing the master equation.
flash poll
educational resources
 
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