Yay! go me! I built a mic!

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Eat Spam before it eats YOU!!!
Member Since: May 11, 2002

...and it nearly works! :)

I am now the proud owner of a very homebrew transformerless ribbon mic... just pluged it in and it got signal up to -25db with _only_ 75db of gain with me clapping my hands infront of it :) Man it was easy... now I only need $200 for a good transformer :P

I think it might actually work fine with high decibil stuff though... I'll put my snare together later and see how it sounds :) heh fun stuff...

I also got my first two tube preamps today in the form of a Robert's 770 4track reel to reel... it mostly works and for around $70 I'm very happy with it... one pre seems to have a blown tube and the pres only work if the deck is in record mode.

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Administrator
Since: Apr 03, 2002


Feb 23, 2004 06:28 pm

Very cool dude! Soon we will expect an article about how to do it for the do-it-yourself section :-D

Czar of Midi
Administrator
Since: Apr 04, 2002


Feb 23, 2004 08:50 pm

You should be able to bypass the record mode thing with some internal finagling. There should be a relay section in there that controls the pre-amp only in record mode and if ya bypass that your in like flint. On the otherhand if ya plan on keeping the deck as a running 4 track then you mihgt not want that.

Ribbon mic, very kool indeed.

Eat Spam before it eats YOU!!!
Member
Since: May 11, 2002


Feb 23, 2004 09:00 pm

the plan with the reel to reel is (because it's a two head system) record to tape and then with the next head play the tape (basically a layback) and put that signal on computer.

I'll be testing my snare on that mic tomarrow... I've already obliterated the ribbon and will need to crimp a new one.. which is not something I feel I can do when tired. :)

Eat Spam before it eats YOU!!!
Member
Since: May 11, 2002


Feb 25, 2004 08:12 am

heh my continueing adventures... I didn't work on the mic because I was busy working on one of the preamps...

The primary preamp was getting lots of distortion so I thought it was a bad tube... I open it up and pull them out and it turns out one of the tube sockets is completely pulverized... I'm thinking... replace the plug... no problem... so I head off to my city's only proaudio repair place and get the plug for $7, solder it in and it looks all happy... but now neither preamps show any signal :O So I get to spend more time checking connections today and I'm certain I put everything on the right tube posts...everything lights up happily.

...If all else fails I'll just pull it all apart and try to build my own :)

Contributor
Since: Sep 09, 2002


Feb 26, 2004 11:29 am

neat!

i've been thinking about making a pair of these www.prosoundweb.com/recor...dmic_16_1.shtml

Frisco's Most Underrated
Member
Since: Jan 28, 2003


Feb 26, 2004 02:29 pm

Jamie, that's a cool article. Where would one go to purchase the parts listed in order to build a mic(like in the article)? I'm assuming you can't find most of this stuff at the local hardware store?

Czar of Midi
Administrator
Since: Apr 04, 2002


Feb 27, 2004 11:04 pm

coolo, they give a number for a local company here called digi-key that supplies the pansonic mic piece. The rest of that stuff can be had at the local Radio Shack or what ever electronics out fit you have down there. Then yes some of the stuff comes form the local hardware store.

...bringing sexy back
Member
Since: Jul 01, 2002


Feb 29, 2004 07:49 am

wow, thats a cool article jamie. i just gotta find a uk supplier for the parts...

Czar of Midi
Administrator
Since: Apr 04, 2002


Mar 02, 2004 08:28 pm

And at the price I think I will build 6 of them.

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