No, But Their Frequency Counter, works well.
----- Original Message -----
From: "Senk, Mark J. (CDC/NIOSH/NPPTL)" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, March 05, 2008 12:48 PM
Subject: DC beeper
> =09
> Has anyone used or even built the DC beeper from Jackson Harbor?
>
> You hang it on your 12 volt power supply and hear the voltage sent in
> Morse.
>
>
> The kit will set you back around $15.
>
>
> Mark Senk | [log in to unmask]
> 412 386-6513
> http://www.cdc.gov/niosh/npptl/
> =20
>