This is the first link if you Google for "auditory gimick":
http://www.ski.org/Rehab/Devices/General/auditory_gimmick.html
I don't know whether it includes a printed schematic, although I suspect
that several versions have appeared in QST. This is from the
Smith-Kettlewell Institute in San Francisco. Hope this helps.
73,
Lloyd Rasmussen, W3IUU, Kensington, Maryland
Home: http://lras.home.sprynet.com
Work: http://www.loc.gov/nls
> -----Original Message-----
> From: For blind ham radio operators [mailto:[log in to unmask]]
> On Behalf Of Richard Wells
> Sent: Saturday, June 11, 2011 10:01 PM
> To: [log in to unmask]
> Subject: Schematic For Audio Oscillator Tuning Device
>
> Hello, I have contacted Handihams about this, but I have received no
> response. Does anybody know where I can get a Schematic For one of
> those Audio Oscillator Tuning Devices? You know, the one you wire up
> and plug in to a tuner or something via a quarter-inch stereo plug and
> it provides audio feedback as the meter changes. I hope I am explaining
> this well enough. Thanks in advance for any help. WD5CMZ
>
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