[time-nuts] hp 7563A Log Voltmeter Service Info Request

J. Forster jfor at quik.com
Sun Oct 31 23:30:28 EDT 2010


There are a number of small neons available pretty cheap:

http://www.bulbtown.com/Neon_Glow_Bulbs_s/909.htm

-John

===============


> I have had one and a fine case they can make.
> But the place to start looking is at a chopper that they use in it. Its
> made
> of 2 neon bulbs and two photo cells. With age the neon bulbs die.
> What did on a voltmeter that suffered the same issue was use a modern
> chopping opamp.
> Yup to a bit of doing. Other crazy thought would be to hack into the unit
> and see if the bulbs might be replaced. Though hp used some smaller then
> normal ne2 neons.
> Just a thought
> Paul
>
> On Sun, Oct 31, 2010 at 10:17 PM, J. Forster <jfor at quik.com> wrote:
>
>> Try Dave at ArtekMedia.com. He has a huge inventory of scanned HP and
>> Tek
>> manuals.
>>
>> Best,
>>
>> -John
>>
>> =================
>>
>>
>> > Greetings to the List:
>> >
>> > Can anyone point me to a source of service literature (schematic,
>> specs)
>> > for an hp 7563A logarithmic voltmeter?
>> >
>> > My recent purchase will become a cabinet for a different project if it
>> > can't be brought back to life.
>> >
>> > Thanks,
>> > Peter
>> >
>> >
>> >
>> > _______________________________________________
>> > time-nuts mailing list -- time-nuts at febo.com
>> > To unsubscribe, go to
>> > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>> > and follow the instructions there.
>> >
>> >
>>
>>
>>
>> _______________________________________________
>> time-nuts mailing list -- time-nuts at febo.com
>> To unsubscribe, go to
>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>> and follow the instructions there.
>>
>






More information about the time-nuts mailing list