Ahh ok, so what he states as -Va is actually B-, why can't everyone use the
same names? Confuses me sometimes when its after midnight, maybe its time
to go to bed again and get a fresh start tomorrow, i start double guessing
myself this late.
What's wrong with the GI-7B? Seems awful popular and i know a guy running a
pair on HF for about a year now.
73,
Scott
----- Original Message -----
From: "RICHARD GEORGE" <k6kwq@msn.com>
To: "KB0NLY" <kb0nly@mchsi.com>
Sent: Sunday, February 15, 2009 12:41 AM
Subject: Re: [Amps] One more dumb question...
> It goes to B- held above ground for metering purposes. GI-7b not best
> chice of tubes and SB-200 not best chice for cooling lay out. Been there
> done that.
> Good luck
> Amps by "MORE POWER"
> K6KWQ DICK
>
>
> ----- Original Message -----
> From: "KB0NLY" <kb0nly@mchsi.com>
> To: <amps@contesting.com>
> Sent: Saturday, February 14, 2009 10:15 PM
> Subject: [Amps] One more dumb question...
>
>
> Maybe its because its late at night and my brain isn't working...
>
> Looking at this schematic for converting an SB-200 to a two band amp using
> the GI-7B for 2m and 6m.
>
> http://www.nd2x.net/yu1aw/1xGI7B-6n2-skem.gif
>
> Ok bottom right, the bias circuitry, it shows a connection point for -Va.
> Some designs show this connection and some don't, which leads to the
> confusion of where does this actually connect to, or to be more specific
> if converting a SB-200 using this design and adding a filament transformer
> for the GI-7B where is the best place to make this -Va connection?
>
> Another thing, sadly i saw the posts of Tony's passing. Will someone
> continue the production of the Bias board? Looks like a really good
> solution to build into this conversion.
>
> You will have to forgive the dumb questions, first time working on a
> conversion of this type, i have rebuilt and repaired HF amps before, but
> nothing of this nature. Should be fun though!!
>
> 73,
>
> Scott, KBØNLY
>
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> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
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