What if you had two final tubes, one idle until the other gave up the ghost.
It's easy to change over the same way with way less circuitry. Personally, I
dont like cramming all those solid state devices together that way when 1 tube
will do the same. Actually, like I mentioned above have two, one being a spare
to be switched to. They have made them in that very setup so I cant see any
benefits to the solid state over the tube. All those cards and the
interconnecting wiring inside the cabinet is like trying to cram 10 pounds of
s#it in a 5 pound box. When or if they ever make some large semis that you
could run one in place of a tube, then that would change my thinking. Now, I
dont think any of the "bricks" made today operate anywhere close to the RF
range. Powerex makes some big semis but still nothing in this freq. range I
dont think.
Best,
Will
*********** REPLY SEPARATOR ***********
On 3/31/05 at 7:23 PM Dr. William J. Schmidt, II wrote:
>Not if you needed to change a tube after you "popped one" while on the
>air!
>Then you'd wish you had the little cards to slide in and out.
>
>Sincerely,
>
>Dr. William J. Schmidt, II K9HZ
>Trustee of the North American QRO - Central Division Club - K9ZC
>
>Email: bill@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@ezwv.com>
>To: <amps@contesting.com>
>Sent: Thursday, March 31, 2005 6:01 AM
>Subject: Re: [Amps] Even more power solid-state amp's
>
>
>>I cant figure them using them. One big amp I seen was a cabinet with
>maybe
>>100 cards in it. Each card had maybe 2-4 push pull amp assemblies on it
>(or
>>what it looked like to me). When they repair one, they pull out a card or
>>two of the bad ones and put a new one(s) in their place. To me, I'd soon
>to
>>have 1-2 big steel tubes instead that rats nest of all those cards, but
>>that's the way their wanting to go. However it's up to the customer on
>what
>>they want to buy as they make both types yet. You can see some pics at
>the
>>Continental website I think.
>>
>> Best,
>>
>> Will
>>
>>
>> *********** REPLY SEPARATOR ***********
>>
>> On 3/31/05 at 6:52 AM Gudguyham@aol.com wrote:
>>
>>>In regard to solid state amps.........My cousin who was the engineer in
>>>charge of the transmitter for WABC (sk in the 911 tower incident) said to
>>>me that
>>>all the power running on the transmitter for WABC TV was cascaded solid
>>>state amps. They are no longer using tubes. I was looking for some
>>>"pulled"
>>>tetrodes with handles....too late now...I wonder if I will live long
>>>enough to
>>>see "tube type" amps fall by the wayside? I am 53. 73 Louie
>>>_______________________________________________
>>>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
|