[South Florida DX Association] twenty tube amplifier

Bruce Phegley bphegley at bellsouth.net
Tue Sep 4 21:29:57 EDT 2007


Thanks Andre, that worked fine.  wow, some amp. I would love to have a 
place to put it!!


fish7days wrote:
> Try this URL:
>
> http://tinyurl.com/yt99wu
>
> Andre
> N1AJV
>
> -----Original Message-----
> From: sfdxa-bounces at mailman.qth.net [mailto:sfdxa-bounces at mailman.qth.net]
> On Behalf Of Bruce Phegley
> Sent: Tuesday, September 04, 2007 8:25 PM
> To: Scott / W4PJ
> Cc: SFDXA at mailman.qth.net
> Subject: Re: [South Florida DX Association] twenty tube amplifier
>
> I never could get the page to come up from that link.
> I figured it was just a bad link, guess not..
> here is what I get.
>
> 	
> *Page Not Responding* 	
>
> 	
>
> 			The eBay page or feature you are attempting to
> access is not responding.
> Please try the options below:
>
>     * *Try to access the feature directly from the eBay Home Page
>       <http://www.ebay.com/>*, instead of using a bookmark.
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> your page:
>
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>
> Scott / W4PJ wrote:
>   
>> That's really cool.
>> Like a Log-Periodic antenna, which ever section of the system is resonant
>> does the work, and the other elements just don't do anything.  In this amp
>> which ever section of the tube line-up is resonating via the continuous
>> coil - what is it, I forget  F=2*Pi / FC ?... so even though there are 18
>> tubes in the output section, only two or three are making any power / on
>> each side at a time. Maybe 3 tubes on each side of the rail x 2 =  6
>>     
> 250B's
>   
>> is an easy kilowatt - three on each side at whatever frequency happens to
>>     
> be
>   
>> resonating while the rest of the valves aren't being excited.
>>
>> No tune Log-Per Amplifier.  I'm impressed.
>>
>> Scott / W4PJ
>> ----- Original Message -----
>> From: "Tom Lewis" <n4tl2 at earthlink.net>
>> To: <SFDXA at mailman.qth.net>
>> Sent: Friday, August 31, 2007 9:12 PM
>> Subject: [South Florida DX Association] twenty tube amplifier
>>
>>
>>   
>>     
>>> twenty tube amplifier
>>>
>>>
>>>     
>>>       
> http://cgi.ebay.com/Marconi-1kW-HF-Amplifier-TWENTY-4CX250B-Tubes-AWESOME_W0
>   
>>   
>>
>>     
> QQitemZ120154931888QQihZ002QQcategoryZ48700QQrdZ1QQssPageNameZWD2VQQcmdZView
>   
>>   
>>     
>>> Item
>>>
>>>
>>> Tom, N4TL
>>>
>>>
>>>
>>>
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