deane kidd who has tektronix parts might have the neon bulbs you need
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----- Original Message -----
From: Harvey White
To: hp_agilent_equipment@...
Sent: Saturday, November 03, 2007 9:07 PM
Subject: Re: [hp_agilent_equipment] Re: 419A Chopper Replacement
On Sat, 03 Nov 2007 15:22:26 -0500, you wrote:
>I don't know about the alignment. My experience was with the opto-chopper in
>the 410C. Mine was replaced as a unit by the company cal lab.
>
>There are only a very few wire pigtail Ne's made. I think there was a means of
>ID'ing which is in there by looking very carefully at the glass pinch area.
>There is something stamped into the glass as I remember. You might ask someone
>like BulbDirect that specializes in lamps.
I remember NE2-D and NE2-J as well as the NE2; different wattages,
IIRC.
Harvey
>
>Best,
>-John
>
>
>
>Christian A Weagle wrote:
>
>> --- In hp_agilent_equipment@..., J Forster <jfor@...> wrote:
>> >
>> > Many Ne bulbs have minute amounts of radioactive material in them to
>> > stabilize the firing point. As the radioactive emission rate decays, the
>> > bulbs become erratic. Put in new bulbs, if you can.
>>
>> That was my first impulse; however, the manual (paragraph 5-27) states
>> that "physical alignment and selection of the neon bulbs are critical"
>> and that replacement of the entire assy is the only thing to do.
>>
>> Can you speak to this at all? If I _do_ replace the neons, are
>> standard NE-2 bulbs the right thing to use?
>>
>> Thanks for your help!
