passive ring modulator

My first DIY module project.

I found this from the net when searched schematics for ring mod and decided to git it a try.

http://www.usefulcomponents.com/main_contents/projects/simple_ring_mod/simple_ring_mod.html

• 0 mA +12V
• 0 mA -12V
• 0 mA 5V

Module is available as a DIY project only.

No info about availability.