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Re: [Amps] New Elecraft Amps (GS35B sockets?)

To: "Patrick A. Thompson" <wa4tuk-rf@comcast.net>
Subject: Re: [Amps] New Elecraft Amps (GS35B sockets?)
From: KD7QAE <KD7QAE@ARRL.NET>
Date: Thu, 27 Apr 2006 01:57:56 +0100
List-post: <mailto:amps@contesting.com>
Sure, just a web search for gs35b and you will see everything from hose 
clamps to custom made supports.  My favorite is Tony King's method of 
using 1/4" Cu stock to fabricate a mount that is both sturdy, low 
inductance and provides a low impedance to airflow.  Check it out at 
http://gs35b.com/ .

Tomm

Patrick A. Thompson wrote:

>A number of hams market "homemade" sockets for the GS35B.  It's easy to see
>how the anode and filament stem receive cooling with these sockets.  Could
>you describe or point to a web page that shows a direct chassis mount that
>has adequate cooling for both the anode and filament area?
>
>I've seen at least one web page showing the GS35B mounted directly on the
>chassis but I don't see how it's cooled. 
>
>Pat
>wa4tuk
>
>  
>
>>-----Original Message-----
>>From: amps-bounces@contesting.com 
>>[mailto:amps-bounces@contesting.com] On Behalf Of KD7QAE
>>Sent: Tuesday, April 25, 2006 10:04 PM
>>To: craxd1@verizon.net
>>Cc: amps@contesting.com
>>Subject: Re: [Amps] New Elecraft Amps
>>
>>All,
>>
>>A GS35b needs NO sockets!  Also no fragile glass to break!, 1 
>>Tube, microwave oven transformer, some caps and coils, a TR 
>>relay from Russia and a meter or two and you are on the air 
>>at full power for cheap.  Add a plywood box to make it official!
>>
>>Tomm
>>_________________________________________
>>Will Matney wrote:
>>
>>    
>>
>>>Eddy,
>>>
>>>I'm hoping to start a grid driven, 4 tube with 813's. The 
>>>      
>>>
>>price you can pick the tubes up, even if new Chinese, and the 
>>other parts pretty cheap compared to others. I seen where you 
>>could by a set of 4 new 7 pin sockets for about $10-$12. The 
>>transformer and chassis would most likely be the cost in the project.
>>    
>>
>>>Best,
>>>
>>>Will
>>>
>>>*********** REPLY SEPARATOR  ***********
>>>
>>>On 4/25/06 at 4:13 PM Ed Swynar wrote:
>>>
>>> 
>>>
>>>      
>>>
>>>>HA...!!!
>>>>
>>>>...And to think that my compadres said that I was MAD for 
>>>>        
>>>>
>>homebrewing 
>>    
>>
>>>>a linear around a pair of surplus 813's...!
>>>>
>>>>I feel both vindicated and exonerated...looks like the 
>>>>        
>>>>
>>price of being 
>>    
>>
>>>>an appliance operator has risen dramatically, Hi Hi...
>>>>
>>>>~73~ Eddy VE3CUI - VE3XZ
>>>>
>>>>"...Homebrewer by choice, not circumstance..."
>>>>
>>>>
>>>>
>>>>----- Original Message -----
>>>>From: "Jim Kearman" <jkearman@att.net>
>>>>To: "Amps" <amps@contesting.com>
>>>>Sent: Tuesday, April 25, 2006 1:23 PM
>>>>Subject: [Amps] New Elecraft Amps
>>>>
>>>>
>>>>   
>>>>
>>>>        
>>>>
>>>>>A friend forwarded this info, which appeared on the Elecraft and 
>>>>>Ten-Tec
>>>>>     
>>>>>
>>>>>          
>>>>>
>>>>lists. Get ready for "sticker shock."
>>>>   
>>>>
>>>>        
>>>>
>>>>>>We officially previewed the amplifiers this weekend in 
>>>>>>            
>>>>>>
>>our booth at 
>>    
>>
>>>>>>the
>>>>>>       
>>>>>>
>>>>>>            
>>>>>>
>>>>Visalia DX convention and prior to that we were not able to 
>>>>        
>>>>
>>answer all  
>>    
>>
>>>>of the emails we were being flooded with. (I just got back 
>>>>        
>>>>
>>into the  
>>    
>>
>>>>office
>>>>today.)
>>>>   
>>>>
>>>>        
>>>>
>>>>>>We previewed working units of the KPA800 (800W) and 
>>>>>>            
>>>>>>
>>KPA1500 (1500W+)
>>    
>>
>>>>>>       
>>>>>>
>>>>>>            
>>>>>>
>>>>solid state amplifiers at the show. We are now going 
>>>>        
>>>>
>>through the FCC 
>>    
>>
>>>>certification process for these amps (basically to show that they 
>>>>can't  be used as CB amplifiers). We can not take orders 
>>>>        
>>>>
>>until after 
>>    
>>
>>>>we receive  the final certification, which usually takes 
>>>>        
>>>>
>>90-120 days.
>>    
>>
>>>>   
>>>>
>>>>        
>>>>
>>>>>>The KPA 800 is a single box amplifier with an internal custom 
>>>>>>designed
>>>>>>       
>>>>>>
>>>>>>            
>>>>>>
>>>>60V switching power supply. It weighs approximately 36 lbs. 
>>>>        
>>>>
>>Dimensions  
>>    
>>
>>>>are 16.5"w x 15.5"d x 7"h.
>>>>   
>>>>
>>>>        
>>>>
>>>>>>The KPA1500 uses two enclosures. The main desktop RF deck is the 
>>>>>>same
>>>>>>       
>>>>>>
>>>>>>            
>>>>>>
>>>>size as the KPA800. The power supply enclosure is approximately 4" 
>>>>high and is the same depth and width as the main unit. It can sit 
>>>>under the  main enclosure or under your operating table. 
>>>>        
>>>>
>>The KPA1500 
>>    
>>
>>>>easily makes  1500W+ on 160M - 10M. We also plan for it to cover 6M 
>>>>with lower power.
>>>>(Approximately 400W). The main RF box weighs about 40 lbs and the 
>>>>power supply box about 15 lbs.
>>>>   
>>>>
>>>>        
>>>>
>>>>>>Here is a short list of additional features:
>>>>>>
>>>>>>*Full Break-In Silent Diode T/R* *Microprocessor 
>>>>>>            
>>>>>>
>>Controlled* *Auto 
>>    
>>
>>>>>>Band
>>>>>>       
>>>>>>
>>>>>>            
>>>>>>
>>>>Switching* (RF Sensing) Very fast.. *Built In Auto-Tuner*. 
>>>>        
>>>>
>>Matches 3:1 
>>    
>>
>>>>at 1500W *SO2R ready.* Two Rig Inputs / Two Antenna Outputs 
>>>>        
>>>>
>>(2nd rig 
>>    
>>
>>>>routes to alternate antenna) *RS-232 Port* for remote control and 
>>>>firmware downloadable updates. *Key-In / Key-Out 
>>>>        
>>>>
>>sequencing* for older 
>>    
>>
>>>>rigs *Custom Designed Switching Power Supply (RF Quiet)*
>>>>   
>>>>
>>>>        
>>>>
>>>>>>The assembled version of the KPA1500 should sell for 
>>>>>>            
>>>>>>
>>about $5,900; 
>>    
>>
>>>>>>The
>>>>>>       
>>>>>>
>>>>>>            
>>>>>>
>>>>KPA800 about $3,900. The kit versions for these should be around  
>>>>$300-500 less. (These are not final prices and may vary several 
>>>>hundred  dollars.) We will pre-assemble the 60V switching power 
>>>>supplies and the  internal RF transistor cards on the kits. (Don't 
>>>>worry - there is still  plenty for you to build.  :-)
>>>>   
>>>>
>>>>        
>>>>
>>>>>>We expect to be able to take orders later this summer and plan to 
>>>>>>ship
>>>>>>       
>>>>>>
>>>>>>            
>>>>>>
>>>>production before the Pacificon hamfest in mid-October.
>>>>   
>>>>
>>>>        
>>>>
>>>>>>73, Eric WA6HHQ
>>>>>>       
>>>>>>
>>>>>>            
>>>>>>
>>>>>73,
>>>>>
>>>>>Jim, KR1S
>>>>>http://kr1s.kearman.com/
>>>>>_______________________________________________
>>>>>Amps mailing list
>>>>>Amps@contesting.com
>>>>>http://lists.contesting.com/mailman/listinfo/amps
>>>>>     
>>>>>
>>>>>          
>>>>>
>>>>_______________________________________________
>>>>Amps mailing list
>>>>Amps@contesting.com
>>>>http://lists.contesting.com/mailman/listinfo/amps
>>>>   
>>>>
>>>>        
>>>>
>>>
>>>_______________________________________________
>>>Amps mailing list
>>>Amps@contesting.com
>>>http://lists.contesting.com/mailman/listinfo/amps
>>>
>>> 
>>>
>>>      
>>>
>>_______________________________________________
>>Amps mailing list
>>Amps@contesting.com
>>http://lists.contesting.com/mailman/listinfo/amps
>>    
>>
>
>
>  
>

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