Ring mod circut...

Hcabnivek Hcabnivek at aol.com
Thu Mar 26 02:01:54 CET 1998

See below for thread...

This design also appears in Terence Thomas's book  "Sound Synthesis",  a book
that I can not recommend not strongly enough = it sucks.  Full of typos in
circuits etc.  It's a TAB book.
However, this design does appear in this book, and according to him, there are
few restrictions on parts - i.e. any two audio transformers will work as long
as they are matched, and the diodes recommended are 1n914's!  A couple of
decoupling caps are added, and in his version the x input is through one end
of primary 1, the output is at one end of  primary 2, the y signal is input
through the center tap of trans  2 and the other ends of the primaries and the
center tap of trans 1 are all tied to ground.  Basically it's the same.
I have not tried this. I have no idea how (or if) it works, but if it does, as
has been said, what could be simpler?

In a message dated 98-03-25 19:10:19 EST, you write:
>  Yes...The problem comes in when one tries to locate these mysterious
>  diodes, which if I remember correctly, were a specialized product used in
>  old radio transmitters. If anyone finds them, please let me know.
>  Best of luck...
>  Peter
In a message dated 98-03-25 19:10:19 EST, you write:

> >Was it this list where someone was looking for a simple ring mod circut?
>  >it doesn't get any simpler than this.(I think)  Dont know how it would
>  >sound either....
>  >Someone give it a try and report back...
>  >here it is:
>  >http://www.synthfool.com/ringmod.html
>  >
>  >~Steve

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