[TenTec] Centurion

[Gary Hoffman]

Phil,

I understand your point.

But, if I were to mess up again somehow, then I'd not have any more
replacement grippers to switch.

I suppose I could buy a spare socket.

But I'm not sure if or where those are available either, nor am I sure that
the gripper design has remained unchanged over time.

Gary


----- Original Message ----- 
From: "Phil Chambley, Sr." <k4dpk at comcast.net>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Tuesday, December 13, 2005 10:33 PM
Subject: Re: [TenTec] Centurion


>
> Never tried to find new springs.
>
> After swapping springs grid/fil, never had a problem.  Grid pins don't
heat
> up, so gripper doesn't lose its grip again after tightening.
>
> Phil
> ----- Original Message ----- 
> From: "Gary Hoffman" <ghoffman at spacetech.com>
> To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
> Sent: Tuesday, December 13, 2005 8:34 PM
> Subject: Re: [TenTec] Centurion
>
>
> > Excellent points.
> >
> > Can one obtain replacement gripper springs ?
> >
> >
> >
> > ----- Original Message ----- 
> > From: "Phil Chambley, Sr." <k4dpk at comcast.net>
> > To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
> > Sent: Monday, December 12, 2005 8:19 PM
> > Subject: Re: [TenTec] Centurion
> >
> >
> > > Re 3-500Z problems....Johnson 275 and similar sockets:
> > >
> > > I2R losses due to poor contact between filament pins and socket
grippers
> > > result in melting solder out of the pins.
> > > This, no doubt, caused many tubes to be discarded before it became
known
> > how
> > > to correct the problem.
> > >
> > > The same heat that melts the solder causes the gripper spring to lose
> its
> > > temper, so the gripper doesn't squeeze the pin as tight.  If this
isn't
> > > corrected, the problem will simply recur.
> > >
> > > After repairing the tube pin, I swap the gripper springs from one of
the
> > > grids to the offending filament gripper on the socket.   Squeeze them
> both
> > > tight before installing, and make sure the grippers are all cleaned.
I
> > use
> > > a .22 caliber bore brush.
> > >
> > > 73
> > > Phil K4DPK
> > >
> > > VFO Stabilizers and other gadgets www.k4dpk.com
> > >
> > >
> > > ----- Original Message ----- 
> > > From: "Lyle Dunlap" <lyle3dd at grics.net>
> > > To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
> > > Sent: Monday, December 12, 2005 11:00 AM
> > > Subject: Re: [TenTec] Centurion
> > >
> > >
> > > > Gary,
> > > >
> > > > Good suggestion about socket pin friction or tightness.  When the
> 3-400Z
> > > > tube first came out, quite some time before the 500Z .  The
> recommended
> > > > socket at the time was made from plastic.  The fil. connections
became
> > > very
> > > > weak and I had to use an "amp Clamp"
> > > >
> > > > Lyle W9FCX
> > > >
> > > >
> > > > _______________________________________________
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> >
> >
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>
>
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