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Ken,
I would really appreciate having that schematic. Did you plan to
email it?
Thanks,
Jim T.
In a message dated 10/12/2011 8:25:35 A.M. Central Daylight Time,
wmartindale@cfl.rr.com writes:
I looked
at the schematics and they are simple. It's an AM system.
Incidentally
I designed and built a 10 watt transmitter for Lea. The
transducer was
ceramic and required around 200 volts peak at 46kHz.
I can send the
schematic if anyone is interested. It used Mosfets as the
power element. It
was a simple linear amplifier.
Ken Martindale
-----Original
Message-----
From:
owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org]
On Behalf Of Daniel D. Lance
Sent: Tuesday, October 11, 2011 9:40 PM
To:
personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] K-600
photos
Al Secor has been working on replicating a K-UQC from the
schematic
maybe he can offer some of his observations ?
On
10/11/2011 9:30 PM, Jens Laland wrote:
> Vance
>
> If this
transducer were made by a local one-man shop, then it would not
>
surprise me if it was a simple magnetostriction type
transducer.
>
> Such transducers where often built by placing a
signal coil along the
> circumference of a thin nickel tube (much the
same way you would wrap in a
> doughnut without covering the hole in the
center, i.e. like a toroid),
ref
>
>
http://traktoria.org/sonar/amateur_scientist/magnetostriction_hydrophone.php
#diy
>
>
Therefore, I believe the said circuit schematics could give us
indications
> to what type of transducer the underwater communication
system was
> designed for (magnetostrictive transducers are low
impedance).
>
> Another thing is that such a type of transducer
(in contrast to a homemade
> piezoelectric bender type) performs quite
good as a transmitting
> projector, also.
>
> Best
regards,
> Jens Laland
>
>
>
>
>
>
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