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Re: Zoom H4 modification.

Subject: Re: Zoom H4 modification.
From: "Rob Danielson" danielson_rob
Date: Wed Feb 21, 2007 7:42 am ((PST))
At 8:39 PM +0100 2/20/07, Klas Strandberg wrote:
...
>
>As I see it, the Zoom H4 is right now the only budget alternative to
>a HiMD, as the mic input is equally (?) low noise.

Hi Klas--
I wouldn't say "equal," but you can judge this yourself. The Hi-MD
<-> H4 comparison is 8 seconds in on the referenced mp3 and QuickTime
movie:
http://www.uwm.edu/~type/audio-art-tech-gallery/mediafiles/H4_744_NH700_Com=
pare2.htm

Rob D.

>
>>At 1:38 PM +0100 2/20/07, Klas Strandberg wrote:
>>  >The Zoom with two EM21 works perfectly on extra power supply, but
>>  >adds a audible 600Hz tone when the internal batteries are use.
>>  >So now I'll try the condensors.
>>  >
>>  >Thanks Adam.
>>  >
>>  >Klas.
>>  >
>>  >At 20:25 2007-02-18, you wrote:
>>  >>Klas,
>>  >>
>>  >>If you can fit surface mount caps between the rails, and have the
>>  >>necessary solder paste and hot air soldering equipment, 1000uF 4V
>>  >>tantalums are readily available in Europe from Farnell
>>  >>(www.farnell.com) for about 45 - 68 Kr (about US $5-7).
>>  >>
>>  >>Thanks,
>>  >>Adam
>>  >>
>>  >>--- In  Klas Strandberg <=
>
>>  >>wrote:
>>  >>  >
>>  >>  > Yes, it's an idea. But first we have to find out about the tones =
and
>>  >>  > clicks which it maybe still generates.
>>  >>  > Some people have added three 1000 mfd 4v tantal condensors over t=
he
>>  >>  > voltage rail. This is easily done, but those condensors can only =
be
>>  >>  > bought in the US, they are expensive, and  you have to pay some 1=
00
>>  >>  > dollars to the courier.
>>  >>  >
>>  >>  > I mean - if  modifications make the recorder as expensive as a
>>  >>  > recorder which is okay as it is, there is no point in making the
>>  >>mod's...?
>>  >>  > Unless you really need a small recorder. As far as I know, the on=
es
>>  >>  > working well as they are, are quite big, like my new Fostex.
>>  >>  > And if you have to add an extra power pack to the Zoom, it isn't
>>  >>  > small anymore... life is awful...
>>  >>  >
>>  >>  > Klas
>>  >>
>>  >>
>>  >>
>>  >>"Microphones are not ears,
>>  >>Loudspeakers are not birds,
>>  >>A listening room is not nature."
>>  >>Klas Strandberg
>>  >>Yahoo! Groups Links
>>  >>
>>  >>
>>  >>
>>  >
>>  >Telinga Microphones, Botarbo,
>>  >S-748 96 Tobo, Sweden.
>>  >Phone & fax int + 295 310 01
>>  >email: 
>>  >website: www.telinga.com
>>  >
>>  >
>>  >
>>  >
>>  >
>>  >"Microphones are not ears,
>>  >Loudspeakers are not birds,
>>  >A listening room is not nature."
>>  >Klas Strandberg
>>  >Yahoo! Groups Links
>>  >
>>  >
>>  >
>>
>>
>>--
>>Rob Danielson
>>Peck School of the Arts
>>University of Wisconsin-Milwaukee
>>http://www.uwm.edu/~type/audio-art-tech-gallery/
>>
>>
>>
>>"Microphones are not ears,
>>Loudspeakers are not birds,
>>A listening room is not nature."
>>Klas Strandberg
>>Yahoo! Groups Links
>>
>>
>>
>
>Telinga Microphones, Botarbo,
>S-748 96 Tobo, Sweden.
>Phone & fax int + 295 310 01
>email: 
>website: www.telinga.com
>
>
>
>
>
>"Microphones are not ears,
>Loudspeakers are not birds,
>A listening room is not nature."
>Klas Strandberg
>Yahoo! Groups Links
>
>
>


--
Rob Danielson
Peck School of the Arts
University of Wisconsin-Milwaukee
http://www.uwm.edu/~type/audio-art-tech-gallery/







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