Using a MC149CP balanced modulator chip to build a ring modulator

[shoe]

my first ringmod

Hello Everyone!

This is my first post so, first a quick intro: I am shoe, Im from edinburgh, 23 years old.

So, I'm using a MC149CP balanced modulator chip to build myself a ring modulator on breadboard.

Since I am an ultimate noobie and haven't done any electronics since technology in 4th year at school I'd appreciate the help with a few questions until I can find my... capacity.

Do I need to ground the largest pin of the audio cable to the -VDC of the circuit in order to keep everything tied? Here is the pin-out of the chip.

 

[FvM]

Re: my first ringmod

I guess, you noticed, that the MC1496 application circuits are assuming a bipolar (-8V/+12V) supply. Usually, all input and output signals
would be referred to the common ground rather than the negative supply. Different supply schemes are surely possible, but I
suggest to start with the application´circuit, unless you exactly know what you are doing.