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On Sat, 12 Dec 2020 17:54:08 -0000 (UTC), "Don" wrote:

In sci.electronics.design wrote:
On Sat, 12 Dec 2020 07:56:15 -0000 (UTC), "Don" wrote:

Phil Allison wrote:

the Callins is in an epoxy sealed container

Interesting, but it doesn't answer my question:

Why was the circuit designed to use a Callins in C7?

Was it designed that way?

That circuit was barely designed at all. What's it supposed to do?

Your question restates the gist of this thread.

How can you know the circuit was barely designed at all if you don't
even know what's it supposed to do?

Because it's full of trimpots and selected values. It was probably
futzed until it worked. What's it supposed to do?

--

John Larkin Highland Technology, Inc

The best designs are necessarily accidental.