One was certainly made here in the U.K. quite some years ago.
About £35 - 50 USD.
Not made any more though.
David W Wood
GUILDFORD PHYSIOTHERAPY AND SPORTS CLINIC
MATTHEWS HOUSE
85 EPSOM ROAD
GUILDFORD
SURREY GU1 3PA
T: 01483 575876 (APPOINTMENTS)
302691 (ALL OTHER INQUIRIES/FAX)
E: [EMAIL PROTECTED]
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-----Original Message-----
From: [email protected] [mailto:[EMAIL PROTECTED]
On Behalf Of Larry Stansifer
Sent: Tuesday, November 18, 2008 11:11 PM
To: [email protected]
Subject: RE: [BlindHandyMan] Audible level modification
There was a post on here some months back discussing a
pendulum style level, seems like that would be the hot setup
for a blind/deaf guy.
-----Original Message-----
From: [email protected]
[mailto:[EMAIL PROTECTED] On Behalf Of Tom
Fowle
Sent: Tuesday, November 18, 2008 3:43 PM
To: [email protected]
Subject: Re: [BlindHandyMan] Audible level modification
Hi lenny
Unfortunately, most of the beepers used in modern gizmos are
"piezo electric' units which require very low power. Thus
there would probably not be enough power available to run a
buzzer, which requires a pretty healthy chunk. the only
buzzers I know that don't take much power are high frequency
and thus hard to feel.
Again, the entire unit probably draws so little current from
the battery htat there wouldn't be enough current flow to
run the buzzer.
Depending on the battery used, something might be done with
an
added transistor to take the relatively low current voltage
that runs the beeper and "switch" more current through to a
buzzer, or maybe better to a pager vibrator motor.
If Larry Martin actually has a person who needs
a tactile level, have him contact me privately
and we can talk about us doing a one-off unit
for a particular person. We do have a pretty good deal
of experience with making stuff vibrate.
Tom Fowle
Smith-kettlewell RERC
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