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Polo screen gets bigger when bright.
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AndyWarne:
This is caused by poor regulation of the B+ voltage in the monitor. The brighter screen takes more current which pulls down B+ and lower anode voltages on the CRT makes for a wider scan.
It might be a monitor design shortcoming. Possibly a cap kit might help though.
Andy
IntruderAlert:
I'm just using the 1v output from the ArcadeVGA which is supposed to be enough for the Hantarex according to what I read on the Ultimarc site.

But could that be part of the problem?
Witchboard:
Thanks Andy.
IntruderAlert:
Well, I ordered a cap kit but I'm still wondering if the 1v signal is really enough for the Hantarex
Witchboard:
I ignorant about signal strength, but mine is in use with a game PCB, not a MAME computer.  From this I would conclude that your signal strength is probably fine.
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