[time-nuts] Racal-Dana 1992 switches

[Ulrich Bangert]

Matt,

as you are saying this I remember that i got my first set of replacement
pushbuttons from a German TOKO distributor! If I memember right the name
was "TOKO 3D" and not "TOKO 30" As you I found out that they don't
manufacture switches anymore. All my efforts to find a supplier have not
been successful.

Best regards
Ulrich Bangert 

> -----Ursprungliche Nachricht-----
> Von: time-nuts-bounces at febo.com 
> [mailto:time-nuts-bounces at febo.com] Im Auftrag von Matt Ettus
> Gesendet: Sonntag, 16. Marz 2008 01:24
> An: danrae at verizon.net; Discussion of precise time and 
> frequency measurement
> Betreff: Re: [time-nuts] Racal-Dana 1992 switches
> 
> 
> On Tue, Mar 11, 2008 at 1:05 PM, Dan Rae <danrae at verizon.net> wrote:
> > d.seiter at comcast.net wrote:
> >
> >  >Are these switches the same as the ones in the 1996?  Mine works 
> > perfectly now, but if the switches are a ticking time bomb, 
> I'm going 
> > to move it to a area with better temperature control, and start 
> > looking for a donor unit just in case.  >  >  >  They both used the 
> > same switches.  However, not all batches of these  seem to have 
> > suffered the problem.  If any on a unit go they may well  all die.  
> > Also it is possible that they may have been replaced at 
> some  time in 
> > the past, I knew a technician at the service dept here in  
> California 
> > who did a lot of them way back, when they were still  
> supported...  It 
> > is hard to be more specific...
> >
> >   From examination of the dead ones I remember it was a 
> rubber insert  
> > that died.  They start to feel a bit less springy than usual, then 
> > die.
> >
> >  My 29 cent Jameco switches have worked for me for at least 
> five years  
> > now.  I don't think you would want to have paid racal's prices for 
> > them  anyway :^)
> >
> 
> You guys are bad luck...   My switches were all fine until you started
> talking about them dying...   I desoldered one of them and it appears
> to be marked TOKO 30.  I didn't know TOKO made switches, and 
> none are listed on their web page.  Would Racal still have them?
> 
> Matt
> 
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