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I can't remember exactly how these work. I had the one on my bus fail So I
replaced it with a new one. A few years later the replacement died. I still
had the orginal, so I remember taking it apart, cleaning up the connections
in it, and it worked again.
I believe there is a small screw on it, that you use to adjust the pitch.
But if the screw is either too tight or too loose-you don't get any sound.
The idea was to set the screw in the right spot, then seal it/secure it in
place with some caulk or something...
That's how I remember it, but I did it a few years ago...
-Kevin
'71 FI squareback
'65 kombi
somerville, ma
-----Original Message-----
From: Virginia & Peter [mailto:ginger@parkerdurost.org]
Subject: [T3] horn internals
Any ideas? This is such a simple circuit, but I really don't
understand what creates the vibration/oscilation. The crud was on what
I believe is the "hammer" tip. I'm sure I can get another horn, but now
I'm curious how it works.
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