Modulator AM and FM - circuit schematic

[othername]

Hello,
I need a simple circuit schematic of two analog modulators. Modulator FM and AM. I have to perform simulation of this in pspice. I search on web any schematics with values of elements, but I can't found working.
Anybody help me?
Sorry for my english.
Thx for help, othername.

 

[AMS012]

Have a look at this. **broken link removed**

 

[othername]

I was tried this and it's working. I saw this schemat earlier but then don't work. Now it's OK.
Thx
I still need a FM modulator. This is difficult to find.

 

[BradtheRad]

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