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Converting KL503 to HD

Lkaskel

Well-Known Member
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Aug 4, 2017
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Hi Everyone,
A local OP has asked if there was a way to convert his KL503 to HD. I looked over the schematics for both and the only thing I can find different is a connection from J1 to R12 and the addition of the 7dB attenuator (see below). Are there any other changes that need to be made?

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