I have not seen the original circuit, but the required capacitance seems
very large to me.
If on an input link only 1000pf max should be ample above 3MHz. ex BC
variables should suffice up to 1 kW plus.
73
end
Barry Kirkwood PhD ZL1DD
Signal Hill Homestay
66 Cory Road
Palm Beach
Waiheke Island 1240
NEW ZEALAND
www.waiheke.co.nz/signal.htm
----- Original Message -----
From: <barrie99@marsweb.com>
To: <amps@contesting.com>
Sent: Wednesday, February 20, 2002 12:03 AM
Subject: [AMPS] Antenna tuner
>
> I'd like to thank all of those who offered suggestions regarding
> "relative power idicators" for my link-coupled antenna tuner project.
>
> Now I have another question. The schematic I'm following for the tuner
> calls for a 1700 pf capacitor, in series to ground, on the input link.
>
> I have a 4000 ph vacuum cap that I could use. However, it's big and
> heavy. I also have a 500 pf vacuum cap that's light and small. I
> realize I could add fixed capacitance in parallel to achieve the correct
> value.
>
> My question is: Would "doorknob" caps be a good choice for this added
> capacitance? If so, any particular type?
>
> TNX, Barrie, W7ALW
>
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>
>
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