[Amps] RF parts and parasitics!!

[Carl]

----- Original Message ----- 
From: "Bill, W6WRT" <dezrat1242 at yahoo.com>
To: <amps at contesting.com>
Sent: Thursday, August 27, 2009 12:03 AM
Subject: Re: [Amps] RF parts and parasitics!!


> ORIGINAL MESSAGE:
>
> On Wed, 26 Aug 2009 22:26:30 -0400, "Carl" <km1h at jeremy.mv.com> wrote:
>
>>> Did I err?
>>>
>>> 73, Bill W6WRT
>>
>>
>>I d say so since we arent discussing the Super Cathode circuit.
>
> REPLY:
>
> Pay attention, Carl. We ARE discussing the Super Cathode circuit. Here's 
> the
> entire paragraph that I quoted one sentence from:
>
> "There are obviously major flaws with the super-cathode drive concept, 
> when it
> uses a capacitor divider. Grid current causes grid-to-cathode impedance to
> constantly vary. When grid current is absent, the grid-to-cathode 
> impedance is
> nearly an open circuit. Grid-to-cathode capacitance dominates the upper 
> half of
> the divider, and everything appears to work as planned."
>
> You did say your 'ol eyes were having problems, but try and find the words
> "super" and "cathode" in the above.  :-)
>
> 73, Bill W6WRT

Incorrect. There were others that commented about staying on track and 
concentrate on GG only. Adding something else into the mix only adds to the 
confusion of which there is enough already. Start a seperate thread for the 
Super Cathode if you wish.

Carl
KM1H


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