Condenser mic housing suitable for DIY

[audiox]

The construction is very simple: a mesh cylinder, two end plates and four pieces of threaded rod. Only a minimum of machining is required, so it would be perfect for DIY.

I have a suitable mesh cylinder which is originally meant for a water intake filtering. I bought it about 10 years ago from a hardware store specialised in water pipes etc. I immediately recogniced that it would be perfect for making a mic. Seeing this picture remainded me that I should finally actualise the idea...

The original picture:
http://api.ning.com/files/hycdzcJnomXxeK0YqaQtLulSWugKPbXvHvFP4PC1I-I_/Thuresson.jpg

 

[severus_snape]

I really like the look of that mic. Where did it come from? I think its a great idea for a DIY housing.

 

[xmvlk]

...

Not only simple manufacturing is goal, but
also diffraction efect of the mic body would
be different (the only solid parts are circuit PCB and connector) than
on normal solid body mic.

 

[Gus]

Look at the links below

http://www.microtechgefell.de/eng/home.htm  for the UMT800 model
http://kochandgilpin.co.uk/didrik_de_geer_microphone/Didrik_De_Geer_Mic_Hire.html

nothing new

 

[audiox]

Where did it come from?

Google "Thuresson mic". But there is not much info on the internet about it.

Look at the links below ... nothing new

I don't see much similarity in construction with the UMT800 you mentioned:
http://www.a-d.it/pics_products/microtechgefell/Large%20Diaphragm%20Solid%20State/UMT800_large.jpg

But the idea is quite obvious. It must be because even I have thought it many years ago...

 

[Marik]

Well, maybe somebody still remembers my "pencil holder" ribbon mic from many years ago (it think that thread got buried in former TT forum).

But that's it--use a pencil holder from Staples.

Best, M

 

[Gus]

audiox
I see a possible better design with the umt800 possible less standing waves(if you really want that).

What are the end caps on the Thuresson mesh or plates?  What happens in RF noisy environments with that mesh open area?

I remember the pencil holder microphone.

 

[audiox]

I see a possible better design with the umt800 possible less standing waves.

It is probably better, but also impossible to DIY (the idea of my original post was that the design is DIY friendly).

What are the end caps on the Thuresson mesh or plates?  What happens in RF noisy environments with that mesh open area?

Looks like aluminium. So if you are able to make the seam of the mesh and end plate conductive (shouldn't be that difficult), the EMC performance would actually be very good.

 

[Rossi]

Those large Chinese ribbon bodies actually make a pretty good, relatively open microphone body, if you take out the inner mesh and cloth. I like the large size, because the mesh is relatively far from the capsule.

http://www.groupdiy.com/index.php?topic=30406.0