Somewhere I have an old GEC tube data book, in they specifically say
that the 572B MUST NOT be operated in the horizontal plane. OK the
book is very old and I suppose that things may have changed, but I
still take note of things until I see it in print otherwise stated.
John ZS5JF
----------
> From: Jim AH6OY <ah6oy@lava.net>
> To: amps@contesting.com
> Subject: Re: [AMPS] Running a 3-500Z in the horiz. plane
To: <amps@contesting.com>
> Date: 03 February 1999 09:29
>
>
> Because the grid is hanging is such a way that around 95 % is
going up
> and down with the other 5 % in contact with what makes it stay in
that
> shape. Thus a hot wire doesn't sag much when running up and down. Now
if it
> were rotated 90 degree's in the same horizontal configuration like it
has
> been before by guy's having the socket configured so the 95% is
running
> horizontal you'll find out it isn't just any old run it horizontal
tube. Not
> all of the first tubes of the 572B were good at horizontal from what
I've
> heard also.The grid has to be perpendicular to the ground or sky or
the two
> left feet for some of us.
> 73 Jim AH6OY
> ----- Original Message -----
> From: <zeitler@ibm.net>
> To: <amps@contesting.com>
> Sent: Tuesday, February 02, 1999 7:56 PM
> Subject: [AMPS] Running a 3-500Z in the horiz. plane
>
>
> >
> >Can a 3-500Z be mounted and operated in the horizonal position
rather than
> >vertically as is the norm? I've been digging through the WestCoast
> Handbook,
> >older (the good ones) ARRL Handbooks and I am unable to find
anything
> >definitive.
> >
> >Why can 572Bs be successfully ran in the horiz. position?
> >
> >Lane Zeitler
> >Ku7i
> >
> >
> >--
> >FAQ on WWW: http://www.contesting.com/ampfaq.html
> >Submissions: amps@contesting.com
> >Administrative requests: amps-REQUEST@contesting.com
> >Problems: owner-amps@contesting.com
> >Search: http://www.contesting.com/km9p/search.htm
> >
>
>
> --
> FAQ on WWW: http://www.contesting.com/ampfaq.html
> Submissions: amps@contesting.com
> Administrative requests: amps-REQUEST@contesting.com
> Problems: owner-amps@contesting.com
> Search: http://www.contesting.com/km9p/search.htm
--
FAQ on WWW: http://www.contesting.com/ampfaq.html
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|