[TechAssist] Re: Any info on this old tube/ additional info
- From: greentron@xxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: Sat, 01 May 2004 03:11:41 +0000
What sort of analyzer test was that used for? I used to use photomultiplier
tubes in nuclear radiation monitors. The radiation would cause flashes of light
when captured in a transparent crystal material. The photons would cause
electrons to be emitted from the cathode in the tube. The electrons would be
accellerated to an anode. When they struck the anode a shower of electrons
would be emitted. These would be accellerated to the next anode which was at a
higher voltage,
and etc.. It took 800 to 1200 volts to make the tube work. The various anodes
and the cathode were connected to taps on a voltage divider. The gain of the
tube was adjusted by adjusting the high voltage. The current from the last
anode would go to a milliampmeter or to a pulse amplitude analyzer. They are
still used for this purpose as they are more sensitive than solid state
devices. The Harshaw Chemical Co. of Cleveland Ohio used to make them and kept
large numbers of them on burn-in. The ones that exhibited good stability at
high gain over a long period of time brought very high prices.
J Silverman
> They call it a photo-multiplier tube it picks up a flying dot of=
>
> light from the crt which produces an output signal that is
> proportional to the amount of light which strikes it.That number=
> that
> I posted yesterday isn't the actual number its B&K's part=
> number,I
> have the diagram of the tube if you need it.It also has no=
> heater.
>
> Tv-Service-Company
> RR 3 Box 3550
> Hazleton,Pa.18202
>
>
> On Fri, 30 Apr 2004 12:23:56 -0400, J Silverman wrote:
> >Photo tube? Do mean a "magic eye" tube that was used for beat
> >frequency and
> >null detection?
> >Jerry Silverman
> >Greentron Inc
> >4 Newland Ave
> >Greenville SC 29609
> >864 232 3889
> >Fax 271 2080
> >mailto:greentron@xxxxxxx
> >----- Original Message -----
> >From: "Paul Medvetz" <paulcho@xxxxxxxx>
> >To: <techassist@xxxxxxxxxxxxx>
> >Sent: Friday, April 30, 2004 6:47 AM
> >Subject: [TechAssist] Re: Any info on this old tube/ additional=
> info
> >
> >
> >>I have a old B&K model 1077 analyst that uses the tube that=
> you=3D
> >>are
> >>describing it is the photo tube part # 231- 001-9-001 And it=3D
> >>does
> >>have 11 pins.
> >>
> >>Tv-Service-Company
> >>RR 3 Box 3550
> >>Hazleton,Pa.18202
> >>
> >>
> >>On Thu, 29 Apr 2004 18:42:46 -0500, VM wrote:
> >>>I can't find any tubes with 11 pins in my antique tube=
> manual,=3D
> >>only
> >>>7, 8,
> >>>9,10 & 12 pins. (Some have a Plate Cap on top, of course)=
> Could=3D
> >>you
> >>>have
> >>>miscounted the pins?
> >>>
> >>>Vernon Mosley <vlm@xxxxxxxxxxxxxxxxxx
> >>>Mosley TV Service
> >>>Success, MO 65570
> >>>----- Original Message -----
> >>>From: <Royal19960@xxxxxxx>
> >>>To: <techassist@xxxxxxxxxxxxx>
> >>>Sent: Wednesday, April 28, 2004 1:41 PM
> >>>Subject: [TechAssist] Any info on this old tube/ additional=3D
> >>info
> >>>
> >>>
> >>>>Hi all, Thanks for all the responces and here is all the info=
> I=3D
> >>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
> >>>>
> >>>>
> >>>>
> >>>>-------------------------------------------------------------=
> --=3D
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> >>
> >>
> >>
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