From: news@analogconsultants.com   
      
   On 2/17/26 6:00 PM, John Robertson wrote:   
   > 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 latter is unlikely to work since those flybacks also generate the   
   horizontal deflection, plus helper voltages, plus, plus. You'd also have   
   to replicate all that, separately, and then this whole project can turn   
   into an expensive and time-consuming can of worms.   
      
      
   > 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...   
   >   
      
   IMHO finding the flyback transformer or a used monitor you can scavenge   
   it from is the only viable option.   
      
   --   
   Regards, Joerg   
      
   http://www.analogconsultants.com/   
      
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