[Amps] GI7B Question - Input Matching

[Roger]

James Colville wrote:
> You need the flywheel effect that a C-L-C tank circuit can provide. A broad
> band transformer is not the answer. This was just discussed here at length not
> long ago.
>   
Doesn't the Alpha 76 use the broad band transformer along with a bank of 
resistors to present the proper load?

73

Roger (K8RI)
> 73
> Jim W7RY
>
>
>
>
> On Sun, Mar 14, 2010 at 2:58 PM, ZL2AAA <zl2aaa at paradise.net.nz> wrote:
>
>   
>> I think you will find it's nearer 35ohms.Morrie
>> ----- Original Message -----
>> From: "Lee Buller" <k0wa at swbell.net>
>> To: <amps at contesting.com>
>> Sent: Monday, March 15, 2010 9:30 AM
>> Subject: [Amps] GI7B Question - Input Matching
>>
>>
>>     
>>> I have been reading about the GI-7B Russian made tube.  It seems that the
>>> input impedance of two tubes is around 100 ohms.  Could you not just use
>>>       
>> a
>>     
>>> 2:1 transformer to make a match from 50 ohms to 100 ohms?  What am I
>>> missing here.
>>>
>>> Lee - K0WA
>>>
>>> Ham Radio Operators:  Kansas QSO Party is August 28-29, 2010.  See
>>> www.ksqsoparty.org for details
>>>
>>> In our day and age it seems that Common Sense is in short supply.  If you
>>> don't have any Common Sense - get some Common Sense and use it.  If you
>>> can't find any Common Sense, ask for help from somebody who has some
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>>>
>>> Common Sense is the image of the Creator expressing revealed truth in my
>>> mind. -  J. Wolf
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