[TechAssist] Re: Any info on this old tube/ additional info

Yep, Nixie, that's the name Jim.
I couldn't remember it.

Russ Hoyt
Hoyt's TV
Exeter, NH


----- Original Message ----- 
From: "Jim Myers" <jr.myers@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, April 30, 2004 10:52 AM
Subject: [TechAssist] Re: Any info on this old tube/ additional info


> That jogged a memory, sounds like a NIXIE tube, some have 11 pins. Take
> a look here: http://www.sphere.bc.ca/test/nixies.html
>
****************************************************************************
***************************************
> Since 1972
> Jim Myers
> Telrad Electronics
> Fort Wayne, Indiana
>
> Hoyt's TV wrote:
> > I used to repair Chrondek timers for New England Dragway. They had
display
> > tubes that read out numbers. They were an odd (compared to radio & TV)
> > configuration, but I don't remember how many pins they had.
> > The early versions were about the size of a 6SN7 and had a series of
dots
> > arranged in a circle at the top of the tube to line up with a number (0
to
> > 9) painted on the case. The later ones read out actual numbers by having
> > internal grid wires shaped as a number, and were more the size of a 9
pin
> > miniature tube. Those read out from the side of the envelope. Of course
both
> > they had to have more than 9 pins and probably would have had 11. They
lit
> > up like a neon lamp. Had to have a wire grid for each one of the digits
0 to
> > 9 plus the other pole to conduct to. That would add up to 11 pins.
> >
> > Those were in use in 1968 and stayed until a new computerized system was
> > developed in the 80s, based on the 386 chips. One of the engineers who
> > worked for Chrondek, did a project on the design of a system with a
direct
> > speed read out at about that time (68), for his masters thesis. The
system
> > in use at the time simply read the elapsed time for a car passing
through a
> > pair of beams 132 feet apart, that were situated 66 feet before and 66
feet
> > after the finish line. The timer operator then had to look up the
reading on
> > a conversion chart to write the speed on the timing slip for the driver.
> >
> > Russ Hoyt
> > Hoyt's TV
> > Exeter, NH
> >
> >
> > ----- Original Message ----- 
> > From: <Royal19960@xxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Wednesday, April 28, 2004 2:41 PM
> > Subject: [TechAssist] Any info on this old tube/ additional info
> >
> >
> >
> >>Hi all, Thanks for all the responces and here is all the info I can
> >
> > supply.
> >
> >>Tube number is in a Sylvania box with a number os 13-27681-4
> >>Size is like a 6sn7
> >>Bakelite base with a key
> >>Has 11 pins
> >>made in 1968
> >>The words "red"" blue" are stamped on the base
> >>There is a visable grid on one side of the tube.
> >>Thats all I can offer in info. Thanks in advance
> >>Roy
> >>Roy Adams
> >>Bonded TV Service
> >>5158 W Forest Home Ave
> >>Milwaukee, WI 53219
> >>414-541-9111
> >>www.Bondedtv.com
> >>we have thousands of tubes on the site
> >>Webhosting from only 4.95 a month at Bondedhost.com
> >>
> >>
> >>
>
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