[R-390] SSB Product Detector

[Radio AI2Q]

Take a look at my Web site <http://ai2q.org/>, Stan, and you'll see the 
schematic and photos of the product detector I use with my R-390A.

http://ai2q.org/Prod_det/detector.htm

Vy 73, /AI2Q/, Alex



On 8/10/2019 12:33 AM, Stan Gammons wrote:
> Hi All,
>
> I've been away from the list for quite awhile. But some time ago 
> someone sent me the schematics of a SSB product detector they made. I 
> forget who sent me that. It used a MC1496 and 456.3 Khz and 453.6 Khz 
> crystals. Since we lost ICM, there isn't very many options for 
> crystals anymore. Bomar has a minimum of 10 pieces and QuartSLab wants 
> big $ for low frequency crystals. Anyone know of another source for 
> crystals?
>
> Thanks
>
>
> Stan
> KM4HQE
>
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