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 <[email protected]> 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 -- [email protected] >> > To unsubscribe, go to >> > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> > and follow the instructions there. >> > >> > >> >> >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
