Topband: k9ay loop

[John Rogers]

----- Original Message ----- 
From: "Rick Ruhl" <ricker at cssincorp.com>
To: "'John Rogers'" <johnr1g3pqa at onetel.com>; <topband at contesting.com>
Sent: Saturday, September 05, 2009 4:23 PM
Subject: RE: Topband: k9ay loop


> John I have this kit.. where are the errors documented at and what extra
> components do you need?
>

My pcb is dated 9/9/06 bought at Dayton this year. The errors are very 
minor. Fred KF9GX of Far Circuits is aware and may very well have corrected 
later boards.

1. The 4.7uH inductor used as part of the preamp input filter is marked 
4.7uF on the board.

2. The pcb was tracked between the 2N3866 collector and T1 centre tap. 
Easily corrected with small knife.

Re. the components, I needed the relays, all inductors except 2N3866 output 
matching xfmr, power supply, boxes and switches. I think Fred is selling the 
complete kits now less, cabinet, power transformer, and selector switch, see 
his website. In any case, as Craig  AC0DS says, you may not need the 
preamp.. It sounds as if Craig has made an excellent job of his kit 
including improved switching design.

73 John G3PQA


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