I have this old tube and i am unsure if it is for a radio or a televison. On the top of the glass it has the marks KS 13782 and on the base it says edison model 501 delay relay, west orange, NJ. and next to this it also says B 1605 6.3 V. 60 sec., conts.N/C3AMP 150 V.D.C. 250 V.A.C. and below it has the markings K.S. 13782 again.
i have well over 10,000 tubes on stock and found this while sorting through a lot that i had recently purchased and i have never seen a tube like this one it almost looks like it has a set of points like in the old cars,motorcycle,etc.. any info on this one would be greatly appreciated, thanks and great site

What you have is not a tube, but a time delay relay. The "KS" number means it was made by or for Western Electric. This device contains a filament "heater" that uses 6.3 Volts to heat up a thermal switch. It takes 60 seconds to get warm enough to open the contacts. N/C means "normally closed." This is a thermal switch that is ON until 60 seconds after the heater is energized. Relays like this were used to sequence electronic equipment in the days before computers and digital logic circuits. Amperite was a major manufacturer of such vacuum sealed thermal delay relays.

:I have this old tube and i am unsure if it is for a radio or a televison. On the top of the glass it has the marks KS 13782 and on the base it says edison model 501 delay relay, west orange, NJ. and next to this it also says B 1605 6.3 V. 60 sec., conts.N/C3AMP 150 V.D.C. 250 V.A.C. and below it has the markings K.S. 13782 again.
: i have well over 10,000 tubes on stock and found this while sorting through a lot that i had recently purchased and i have never seen a tube like this one it almost looks like it has a set of points like in the old cars,motorcycle,etc.. any info on this one would be greatly appreciated, thanks and great site

what was this used in?:What you have is not a tube, but a time delay relay. The "KS" number means it was made by or for Western Electric. This device contains a filament "heater" that uses 6.3 Volts to heat up a thermal switch. It takes 60 seconds to get warm enough to open the contacts. N/C means "normally closed." This is a thermal switch that is ON until 60 seconds after the heater is energized. Relays like this were used to sequence electronic equipment in the days before computers and digital logic circuits. Amperite was a major manufacturer of such vacuum sealed thermal delay relays.
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::I have this old tube and i am unsure if it is for a radio or a televison. On the top of the glass it has the marks KS 13782 and on the base it says edison model 501 delay relay, west orange, NJ. and next to this it also says B 1605 6.3 V. 60 sec., conts.N/C3AMP 150 V.D.C. 250 V.A.C. and below it has the markings K.S. 13782 again.
:: i have well over 10,000 tubes on stock and found this while sorting through a lot that i had recently purchased and i have never seen a tube like this one it almost looks like it has a set of points like in the old cars,motorcycle,etc.. any info on this one would be greatly appreciated, thanks and great site

I don't know specifically what this one was used for. The Normally Open types were often used to pre-heat the filaments in a mercury vapor rectifier. These rectifiers needed about a minute of warm-up time before the high voltage was applied, otherwise they tended to arc over. The 60 second delay gave enough time to vaporize any mercury that had condensed in the tube. They were also used as industrial timers. In the days before integrated circuit logic, it was common to use thermal devices to create a specific time delay. You might want to turn on a lamp or run a motor, but only for a specific period of time....this was one way to do it without a mechanical clock.

:what was this used in?:What you have is not a tube, but a time delay relay. The "KS" number means it was made by or for Western Electric. This device contains a filament "heater" that uses 6.3 Volts to heat up a thermal switch. It takes 60 seconds to get warm enough to open the contacts. N/C means "normally closed." This is a thermal switch that is ON until 60 seconds after the heater is energized. Relays like this were used to sequence electronic equipment in the days before computers and digital logic circuits. Amperite was a major manufacturer of such vacuum sealed thermal delay relays.
::
:::I have this old tube and i am unsure if it is for a radio or a televison. On the top of the glass it has the marks KS 13782 and on the base it says edison model 501 delay relay, west orange, NJ. and next to this it also says B 1605 6.3 V. 60 sec., conts.N/C3AMP 150 V.D.C. 250 V.A.C. and below it has the markings K.S. 13782 again.
::: i have well over 10,000 tubes on stock and found this while sorting through a lot that i had recently purchased and i have never seen a tube like this one it almost looks like it has a set of points like in the old cars,motorcycle,etc.. any info on this one would be greatly appreciated, thanks and great site