[Elecraft] KX1: U9 output = 8v?

Jeremy Cowgar jeremy at cowgar.com
Wed Aug 3 19:53:55 EDT 2005


Jeremy Cowgar wrote:

> Sorry, user error with a bit of panic.... I don't know how I did it, 
> but I installed C10 (bottom of the board) into C38's position. C10 is 
> a 10uf electrolitic on the output of U9 to ground. That fixed it all, 
> now I just hope I didn't blow up U3.

Ah, I think I'm alright. U3 is a TC4427 which mouser says is a Dual 
High-Speed Power MOSFET Driver. It's spec sheet says: Wide input supply 
voltage operating range: 4.5v - 18v. Mouser has a pretty cool site I think.

Thanks,

Jeremy
KB8LFA



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