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Re: QCX 40m - Audio


 

Hi Curt,

That is an option. I think the damage occurred while using the solder sucker, I was careful not to overheat with the soldering iron. Those tracks are so thin (A few tenths of a millimeter) but yes with a little ingenuity it may be possible. I will need to find the patience though I think I have expended it all :)

My little audio board certainly worked and my gut feel told me there must be something wrong in the audio section of the QCX but still I never really got a sharp peak while calibrating the band pass filter (BPF) and thought well let's get that a little better first - fault! Once T1 is in it should be correct for you go past the point of no return you can never come back .....

Pity, it happened this way but such things happen. Resoldering and removing anything from a PCB even once is normally a recipe for disaster!

An opportunity to discover the WSPR facility .... I have a serial GPS (Garmin Legend) I usually use with my TH-D7A(g). Just last week I digipeated my coordinates via the International Space Station as it crossed the open sky :)

73 de Eddie ZS6BNE

On Wed, Nov 1, 2017 at 2:00 AM wb8yyy via Groups.Io <wb8yyy=[email protected]> wrote:
Eddie

Pause and lets not concede yet. I envision you making those 8 connections somehow, with separate wires. Install the toroid on a piece of perf board, anything to hold it. How the wires run matters little as long as they don't come thru the toroid. The toroid doesn't need to rest on the board. With some thought you can pull this off. The key thought is making all those wire connections in spite of the damaged board, and then wiring them to the assembled coil.

Curt

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