I didn't see anything of this one on his website, he mentioned to look at
other similar designs for single band amps. I'm thinking of a bit of a
frankenstein actually, combining the layout of a good SB-200 6m conversion
using the GI-7B combined with the added input and output matching from his
two band design to make a 6m & 2m tabletop amp.
Any suggestions, criticism's, bring it on I want to hear it all. But I
think its going to be do-able with a little time.
73,
Scott
----- Original Message -----
From: "Steve Thompson" <g8gsq@eltac.co.uk>
To: <amps@contesting.com>
Sent: Saturday, February 14, 2009 1:52 AM
Subject: Re: [Amps] Amp Design Question...
> The (o) is probably representing a coaxial style connector for the
> HV connection. In some designs he uses pieces of pcb material or
> 'sandwich' construction against a chassis sidewall for the bypass
> capacitor and I'm guessing that's what he's indicating with the
> enlarged capacitor symbol.
>
> Most of his designs have suggested layout drawings to go with them
> and/or pictures of built amplifiers, so have a hunt to see if
> there's one to go with this schematic.
>
> Steve
>
>> 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.
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