PCB for MAT-04 VCA

[Joachim Verghese]

On Tue, 25 Feb 1997, Haible Juergen wrote:

> I think there was a VCA chip that worked by that principle,
> the number was (ironically) 3340. Don't remember the prefix,
> but it was not "CEM" (;->).

I think it was the MC3340 "Electronic Attenuator" by Motorola.
[Two of these chips were used for VC panning in the Maplin 5600].

A nice design, although AC-coupling is essential for most applications.

-joachim