the kit looks nice but for us diy people building and soldering urself is nice so do you have a keyword or something if i should search for a free schematic on the www.
is it understood correctly if i see it as a normal amplifier with an inducttion coil connected as input?
Yes! Put a coil at the input of a high-impedance amplifier. You can also try searching for “telephone amplifier” schematics – the idea is that people who are hard-of-hearing can put the coil on their telephone receiver to amplify it.
6.
Mark | February 6th, 2010 at 7:30 pm
Cheers for the link and info
7.
Daniel | February 10th, 2010 at 9:21 am
Hey.
Just wanna say, really nice idea! There are alot, ALOT of diff electromagnetic sources to record/discover allaround us.
I used kit – Velleman K1803 (if you google you will find a pdf with schematics), and the idea of connecting the coil from
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7 Comments Add your own
1. Mark | February 5th, 2010 at 4:28 pm
Very cool, any chance to get a schematic and/or parts list? Wish I could make your hackerspace event.
2. Chip | February 6th, 2010 at 12:05 am
Got a schematic for the coil circuit?
Thanks!
3. ranjit | February 6th, 2010 at 12:59 am
You can buy the coil amplifier kit at Electronic Goldmine.
4. johannesgj | February 6th, 2010 at 8:49 am
the kit looks nice but for us diy people building and soldering urself is nice so do you have a keyword or something if i should search for a free schematic on the www.
is it understood correctly if i see it as a normal amplifier with an inducttion coil connected as input?
well, nice project!!
5. ranjit | February 6th, 2010 at 11:55 am
Yes! Put a coil at the input of a high-impedance amplifier. You can also try searching for “telephone amplifier” schematics – the idea is that people who are hard-of-hearing can put the coil on their telephone receiver to amplify it.
6. Mark | February 6th, 2010 at 7:30 pm
Cheers for the link and info
7. Daniel | February 10th, 2010 at 9:21 am
Hey.
Just wanna say, really nice idea! There are alot, ALOT of diff electromagnetic sources to record/discover allaround us.
I used kit – Velleman K1803 (if you google you will find a pdf with schematics), and the idea of connecting the coil from
http://www.elecfree.com/electronic/wp-content/uploads/2008/07/telephone-amplifier-by-lf351tba820m.jpg
Enjoy!
/Daniel
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