[SignalOne] Re: More CX7A Drive (was:arcing)

W2AGN [email protected]
Mon, 18 Nov 2002 14:59:29 -0500


On 18 Nov 2002 at 11:25, David Bertman wrote:

> 
> The simplest thing I know of is the connection to RF driver board.  It
> LIKES to get loose.  Also, though it is not the case here, I have seen
> drive problems due to a blown 34 volt supply.  With a system which uses
> the new audio PA (like John's) the driver is the only unit affected if
> this power goes.
> 
> Dave AB7B

I have disconnected and reconnected to rf connection. Also I have the 
same RF at the grid of the tube as I do at the output of the driver, so 
it is getting there. 

Had to put it aside for a day or two while I think about it. I did 
acquire a new driver transistor, should that somehow prove the problem, 
although I seem to have enough RF that it should at least show some 
drive.

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