Scott, that symbol is for a high voltage feed through assembly. The
capacitor is formed by metal plates on each side of the rf enclosure with
thin
dielectric insulating them from ground.
73,
Gerald K5GW
In a message dated 2/13/2009 11:23:13 P.M. Central Standard Time,
kb0nly@mchsi.com writes:
Looking around the web tonight for 6m amp designs using the GI-7B and i came
across this schematic...
http://yu1aw.ba-karlsruhe.de/shema%201xGI7B%202m&6mmod.gif
I understand the schematic except for one thing.. At the top middle where
the connection for +Va is shown it comes down to a second connection point and
then it shows a ground to the left and a connection to what appears to be a
large cap to the right, i assume its a capacitor as that makes the most sense
but these foreign guys use different symbols for stuff sometimes. Why is
that second connection point with the (o) and a ground connection to each side
there? Seems to be a dead short for the HV.
He also doesn't mention what the value of this capacitor labeled as Ca
should be. I know, this could be a stupid NOOBIE question but these foreign
designs are always so sparse on the information and there is hardly any
explanation, etc..
I like his design overall though, looks fairly simple, thinking i could do
my SB-200 conversion so its a 6m/2m amp in one. If anyone has built one of
these please pass along any info you have! A picture says ten thousand words
for me.
73,
Scott
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