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   sci.electronics.design      Electronic circuit design      143,102 messages   

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   Message 142,823 of 143,102   
   John Robertson to All   
   Replacements for tube style monitor flyb   
   17 Feb 26 18:00:15   
   
   From: jrr@flippers.com   
      
   I've run into a problem - replacement flybacks for a popular monitor   
   from the 1970s used in video games is discontinued. So now I'm in a   
   situation where we either junk the monitors and replace with LCD or   
   figure out a way to generate the various voltages (up to 23KV!) needed   
   to run these monitors.   
      
   The picture tube (19VJTP22) specs are:   
      
   Heater 6.3V   
   Anode Voltage 30kV (no one ran them at 30kV!) 20 - 24kV was typical)   
   Cathode Voltage 125V   
   Focus Voltage 5000/6000V   
   Max G2 Voltage 675V   
      
   Not sure of the current requirements yet. Hard to find that data online   
   so far...   
      
   The DC source is 120VDC max 1.25A.   
      
   Ideas? I am first considering finding other flybacks with similar   
   characteristics that could be fitted in using an adapter PCB to fix the   
   pinouts, the other alternative is HV work...   
      
   Thanks,   
      
   John :-#)#   
   --   
   (Please post followups or tech inquiries to the USENET newsgroup)   
                         John's Jukes Ltd.   
           #7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3   
             (604)872-5757 (Pinballs, Jukes, Video Games)   
                         www.flippers.com   
           "Old pinballers never die, they just flip out."   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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