[Amps] Transistor amps

[Will Matney]

William,

If things convert over to solid state, that is what's needed, a high
voltage semiconductor. This I am interested in and wouldn't mind building
a prototype. One thing about mosfets I was told is you can parallel them.
You can parallel say 4 on each side of a push pull amp (8 total) to
increase it's power. This way, you dont have to worry about all those
splitters and combiners.

Thanks,

Will

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>On 3/28/05 at 7:38 PM Dr. William J. Schmidt, II wrote:
>
>>Frequency response rolls off too much for those transistors.  They were
>>made 
>>to work below 2 mhz.  HOWEVER, there are the high voltage mosfets from 
>>Advanced Power Technology that work in the 300-1,200 VDC range deserve 
>>discussion.  The devices are targeted for RF designs  < 75 Mhz, and are
>>very 
>>cheap by most measures (not Rich).  Lots of class "E" circuits for
>them... 
>>APT has many app notes on them... check them out!
>>
>>Sincerely,
>>
>>Dr. William J. Schmidt, II  K9HZ
>>Trustee of the North American QRO - Central Division Club - K9ZC
>>
>>Email: bill at wjschmidt.com
>>WebPage: www.wjschmidt.com
>>
>>"If computers get too powerful, we can organize them into a committee;
>>that 
>>will do them in."  -- Bradley's Bromide
>>
>>
>>----- Original Message ----- 
>>From: "Will Matney" <craxd1 at ezwv.com>
>>To: <amps at contesting.com>
>>Sent: Monday, March 28, 2005 7:08 PM
>>Subject: [Amps] Transistor amps
>>
>>
>>> This is something I have thought of for years and never looked into it. 
>>> Could an amp be built using horizontal output transistors where the 
>>> voltage can be ran up to keep the current down? I wonder if any would
>>work 
>>> up in this frequency range (2-30 MHz)?
>>>
>>> Will
>>>
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>>
>>
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>

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