[sdiy] CMOS CD4046/4070 ring mod??

[media at mail1.nai.net]

At 7:21 PM +0000 12/27/01, Tony Allgood wrote:
>>So has anyone ever built a ring mod using a 4046??
>
>The Radio Shack MG-1 used the 4046 VCO as a high frequency oscillator
>for a top-octave doo dah for its polyphonic output.

Really??  I always wondered what that was.  So they are square outputs
using a 4046 with a divider in the loop??

>And the little ex-or
>in the 4046 was used to create the 'bell-tone' from the two real VCOs
>also contained within the instrument.

That makes sense, although I do not think it is any different than any
other XOR gate, such as the quad XOR CD4070 already being discussed.