Wein Bridge?

[Neil Morrison]

Did you want to build one of these? Most people usually go for a low
distortion circuit, and the Wein isn't optimum for that IIRC.

Neil

----- Original Message -----
From: "Jack Crenshaw" <jcrens at EARTHLINK.NET>


> I just have a question out of curiosity.  I recall, back in the
50's,
> hearing a lot about the Wein bridge oscillator.  Supposedly, it was
the
> best way to build an audio oscillator -- gave a naturally low
> distortion. I recall that it used a light bulb in the bridge
circuit, as
> a temperature-dependent resistance to control amplitude.
>
> It seems to me that one of the Heathkit oscillators used the Wein
> bridge. I vaguely remember reading articles about it, and seeing
the
> schematic in various magazines.  However, none of the oscillators
I've
> seen, including the excellent AG-9A and AG-10, seem to use it.  As
I
> recall, the AG-9A uses a split-T oscillator.
>
> Anyone here recall more about which model used the circuit?

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