Author Topic: EEVblog #602 - Introduction to Microphones  (Read 21184 times)

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Offline SeanB

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Re: EEVblog #602 - Introduction to Microphones
« Reply #25 on: April 13, 2014, 05:10:50 pm »
Cheap Chinese batteries are still around, and they still have the carbon rod in them. The regular black Ever Ready battery range here is an example, though those may still be made in South Africa. I have not looked for a while.

I used to take D cells and use the carbon rod as a welding rod, it works quite well to do small sheet metal work. You cook it a little in a fire to get the wax out, wind the end with a copper wire for better contact, and use a pencil sharpener to make the other end pointy. made microphones using them and 2 halves of a Minora razor blade ( just think that as a kid I could go into a shop and buy bare razor blades no questions asked, and walk around with a knife as well. Could even buy fireworks and matches, along with cigarettes, but no alcohol) on a wooden block along with an old speaker and some wire and the remaining D cell as power.
 

Offline Richard Head

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Re: EEVblog #602 - Introduction to Microphones
« Reply #26 on: April 14, 2014, 10:40:47 am »
It was a great video. I would like to hear more, and don't get scared of getting too technical. The more the merrier.
 

Offline Richard Crowley

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Re: EEVblog #602 - Introduction to Microphones
« Reply #27 on: April 14, 2014, 03:30:47 pm »
A Fiat will get you from point A to point B.  So why do people buy Ferraris?
 

Offline DrGeoff

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Re: EEVblog #602 - Introduction to Microphones
« Reply #28 on: April 14, 2014, 09:28:40 pm »
so ... whats the last 0.1% improvement that manley did to make that price tag?

Put their logo on it.
Was it really supposed to do that?
 

Offline Richard Head

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Re: EEVblog #602 - Introduction to Microphones
« Reply #29 on: April 15, 2014, 06:09:28 am »
A Ferrari is a Fiat!
 

Offline miguelvp

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Re: EEVblog #602 - Introduction to Microphones
« Reply #30 on: April 15, 2014, 06:18:08 am »
A Ferrari is a Fiat!

And a Lotus is a Proton! I still love mine :)
 


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