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Author Topic: Elmo ST1200HD Test Report
Maurice Leakey
Film God

Posts: 5895
From: Bristol. United Kingdom
Registered: Oct 2007


 - posted May 26, 2008 05:39 AM      Profile for Maurice Leakey   Email Maurice Leakey   Send New Private Message       Edit/Delete Post 
I've just been reading the Movie Maker review (March 1978) of the Elmo ST 1200 HD.

In a paragraph relating to the supplied electret microphone, the reviewer talks about the double jack plug with 3.5mm and 2.5mm pins. Referrring the latter he says:- "........for the low-voltage supply for the capsule and presumably the FET built into the microphone."

What is the FET?

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Maurice

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Roy Neil
Expert Film Handler

Posts: 203
From: Menlo Park, CA
Registered: Sep 2007


 - posted May 26, 2008 05:43 AM      Profile for Roy Neil   Author's Homepage     Send New Private Message       Edit/Delete Post 
http://en.wikipedia.org/wiki/Field_effect_transistor

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Maurice Leakey
Film God

Posts: 5895
From: Bristol. United Kingdom
Registered: Oct 2007


 - posted May 26, 2008 05:54 AM      Profile for Maurice Leakey   Email Maurice Leakey   Send New Private Message       Edit/Delete Post 
Roy

Many thanks for the link, which itself has further links.

Have I assumed correctly that the Field Effect Transistor is used for amplifying a low signal?

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Maurice

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