A SCA Adapter for FM Music
This Circuit was NOT Designd by me and the Designer is Unknown.
However It has been tested and works well, so I designed a PCB for it.
Created "Mar 1 2005"
S.C.A. Is an Abbreviation for: "Subsiduary Communication Authorization".
This applies to an Additional 67 Khz Modulation on the standard FM Carrier.
It is intended to provide Commerical-Free Background Music for Stores, Offices and others.
The Origional Schematic was not very good so I have Re-Drawn it.
I suggest this unit be plased between the Reciever and amplifier.
Before any Volume controls or tone controls.
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The Schematic
The PCB
Picture Overlay, Under Construction.
All Imformation in this Article is "Copyright Protected".
Chemelec *Copyright © 2005*
