NEDA 210 Battery

Discussion in 'General Electronics Chat' started by jmoffat, Aug 31, 2014.

  1. jmoffat

    Thread Starter Member

    Jul 18, 2012
    I picked up a great old Tripet 630-PLK VOM at a ham fest for $10. Everything works OK except it needs a NEDA 210 battery for the high resistance ranges. The best price I could find on this battery is $30 plus shipping. Call me cheap but I find it difficult to plunk down nearly 40 bucks for a battery that I will not use all that often. My idea is to use a 9V battery and an oscillator-charge pump or toroid step up and rectifier arrangement to deliver the 50 microamps needed to move the needle to full scale. Any thoughts , comments suggestions before I begin this journey would be appreciated. Circuit suggestions welcomed.
  2. alfacliff

    Well-Known Member

    Dec 13, 2013
    if yoou have room, series 3 regular 9 volt batteries, that 27 volts will be close enough
  3. MikeML

    AAC Fanatic!

    Oct 2, 2009
    How about just snapping three or four of these [​IMG] in series...
    Last edited: Aug 31, 2014