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June 2004, Week 3

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Subject:
From:
LLTI-Editor <[log in to unmask]>
Reply To:
Language Learning and Technology International Information Forum <[log in to unmask]>
Date:
Fri, 18 Jun 2004 12:06:20 EDT
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--- Forwarded Message from "Lee Ramsdell" <[log in to unmask]> ---

>From: "Lee Ramsdell" <[log in to unmask]>
>To: "'Language Learning and Technology International Information Forum'"
<[log in to unmask]>
>Subject: RE: #7548 MB Quart Headsets
>Date: Tue, 15 Jun 2004 12:58:40 -0600
>Importance: Normal
>In-Reply-To:  <[log in to unmask]>

Hi Carine,

We have many of these headsets in use in our CALL lab. These unit are
very sturdy, in fact some have been in use for over 20 years. One of the
strong points of the MB quart is the cable with the DIN Plug.  We made
up an adapter box that the headset plugs into.  The adapter box has a
DIN jack and we soldered in two cables, one for the ear piece and one
for the microphone.  At the other end of the cable that was soldered
onto the DIN jack we soldered on the minijacks that plug into the sound
card.  That is the best way to adapt the MB Quart headset, otherwise
trying to remove the DIN Plug and connect two miniplugs will create
problems.  If you intend to use the headsets for computer applications,
there is another problem.  most likely the microphone cartridge is a
dynamic type ( a magnet and moving coil) and the sound card is set up
for an electrets microphone.  To resolve this problem, we purchased
electrets cartridges and modified the MRQuart Cartridge holder to accept
the electrets cartridge.

We have not had one failure with this set up.  If you have access to a
technical resource group, they should be able to make an adapter box and
change the mic cartridge for not a lot of money.  It seems to me we
[paid about $1.00 for each cartridge.  The DIN jack is about $4.00.

-----Original Message-----
From: Language Learning and Technology International Information Forum
[mailto:[log in to unmask]] On Behalf Of LLTI-Editor
Sent: Tuesday, June 15, 2004 12:10 PM
To: [log in to unmask]
Subject: #7548 MB Quart Headsets


--- Forwarded Message from Carine Ullom <[log in to unmask]> ---

>Date: Tue, 15 Jun 2004 13:27:30 -0400
>From: Carine Ullom <[log in to unmask]>
>User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4)
Gecko/20030624 Netscape/7.1 (ax)
>To: Language Learning and Technology International Information Forum
<[log in to unmask]>
>Subject: MB Quart Headsets
>References: <[log in to unmask]>
>In-Reply-To: <[log in to unmask]>

Hello,
I recently purchased 2 MB Quart headsets "for a song" from Ebay.  These
are the model that I believe was used in Tandberg systems at one time.
They are apparently VERY sturdy and sell for $100 or more at retail. The
reason these 2 were so cheap is because they have the old DIN pins on
the end.  I thought I recalled someone posting to the list not so long
ago regarding re-wiring these and adding a stereo mini plug and a mic
plug.  Has anyone done that successfully?  If so, I'd be grateful for
some advice.  If we can get a rock solid headset for $10 plus some
student time putting on the correct plug, I'll be very happy. Thanks,
Carine

--
Carine Ullom
Director, Language Resource Center/
Instructional Technology Specialist
Department of Modern Languages & Literatures
St. Lawrence University
Canton, NY 13617
[log in to unmask]
315-229-5857 (tel)
http://www.stlawu.edu/lrc

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