[TowerTalk] R 7 help

[Joe Reisert]

Hi Brian,

I find it hard to believe that the caps in your R7 matching unit broke off.
Usually the rattling is the toroid which can break apart from too much
power on the lower bands, especially if used on 80 Meters which is out of
spec. range!

Anyhow, when I designed the R7 matching box in 1991, I had been using 82
pfd (if my memory serves me right) at 6 KV on the R5 but it was too much
capacitance for the R7 so I put two of them in series.

Hope this helps.

73,

Joe, W1JR


>I have an old R7 that I take on trips and things of that nature.  I noticed
>a couple month back,
>something was rattling in the matching network box.  Turns out that the
>matching network CAPS
>had broken off and we just rattling on the inside.
>
>Anyhow, I sent Cushcraft and e-mail to see if I could order the parts from
>them.  It turns
>out that Cushcraft dosen't sell the parts nor would tell me what the values
>are so I can replace them.
>
>Though they did mentioned I could order a new networking box for $170.00
>though.
>
>Was hoping someone out there had the values.
>
>You can sure tell the difference between Cushcraft and KLM.  The last time
>I chatted with
>KLM, they bent over backwards to help me out.
>
>73 de Brian, KG8CO
>kg8co@lni.net
>
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