[BC] Gates VP-50 ?

[Douglas B. Pritchett]

Never had one, never saw one, but do have some realtives who did. Best 
summary was that the VP50 was all hat and no cattle. A solution in 
search of a problem. 
Gates had a good, workable design in the 50C. It was what it was. But 
the VP50 took a reliable design and complicated it exponentially. At 
this point, I cross my fingers and hope Phil Alexander didn't have 
anything to do with that design......

-- 
Douglas B. Pritchett
Fort Wayne, IN
dpritchett1 at comcast.net


DHultsman5 at aol.com wrote:

> 
>In a message dated 1/2/06 10:04:59 A.M. Central Standard Time,  
>amfan at collins21e.com writes:
>
>I never  ran into a VP-50, but I did run into Ampliphasers.   How did the  
>VP-50 work that made it unique?  Tell  more....
>
>
>
>
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>
>++++++++++++++++++++++=
> 
>My recollection on the VP-50 will not be a good as others.   Essentially it 
>was similar to their previous 50 kW.   The  BC-50C,   a plate modulated 50 kW. 
>AM Traansmitter.  
> 
>In the case of the VP-50  there were two modulators sitting in boilers  
>modulating  either one or two RF Pa Stages sitting in boilers.  
> 
>The theory regarding Vapor Phase Cooling was that you could remove more  
>calories of heat from the anodes of the tube by sitting them in water and  
>converting the water to steam.  This eliminated blower systems required to  remove 
>the heat.
> 
>The main disadvantage at 50 kW. was there were several tubes that could all  
>achieve 50 kW. with air cooling.
> 
>The main disadvantage was tube costs,  system maintenance -  water, 
>condenser, piping and that all components around the tube operated  at 212 degrees F.
> 
>The VP100 made a little more sense and I believed the added the trapezoid  
>modulation to that box.
> 
>I am certain others will chime in,   what was the RF  driver,  was the audio 
>drive solid state or tubes?
> 
>You didn't save any power,  you didn't reduce tube costs etc.
> 
>Dave
>
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-- 
Douglas B. Pritchett
Fort Wayne, IN
dpritchett1 at comcast.net