Circuit diagram puzzle

Analoguesat

Analoguesat

Administrator
Staff member
My Satellite Setup
TM 5402HD
Sky+ UK.
My Location
Scottish Borders
One of my friends has sent this pic to me - and its got both of us stumped What is "component X" - I cant remember seeing that symbol before!


315462522_5702816733089677_2104812936067808942_n.jpg
 
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