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Inductor/Choke - Gray 150 A

CSA1863

CSA1863

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May 1, 2012
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North Alabama
I picked up a Gray 150 A amp that has a burnt inductor/choke on the input. I am trying to determine the value so I can replace. The only schematic I have been able to find for this amp is on CBTricks.
http://www.cbtricks.com/Amp/gray/150/graphics/gray_150_sch.pdf
It seems to be a redraw and there are no values for the inductors on the schematic. Per this schematic the inductor/choke in questions is L1. Does anyone know the value or recommend a replacement?

Gray-150.jpg


Also what would cause this to burn out? I am assuming it was being over driven...

Thanks
 

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