Quote:
Originally Posted by JohnCT
Yes, possible but unlikely. The filament voltage is what's most picky when it comes to "zip". If your filament voltage was low on your Samsung, then the tube would look tired. Since the filament is derived from the flyback, then low HV could cause that, but there are usually other symptoms besides a tired look of the picture.
I've seen the kine source bypass filter cap (typically low value like 10uf and high voltage like 250V) go bad and cause excessive brightness. When the G2 adjustment is lowered to compensate, the cutoff of the guns is wrong and the tube can flare out like it's weak, but the other symptom of the bad filter cap is that the brightness would be higher on the right side of the picture. Since you didn't mention that, I don't think the kine source cap is weak/bad in the Samsung.
It's possible (likely really) that your Samsung tube has different impedance on the filament so when installed in the game monitor, you're filament is running brighter (hotter) because the filament winding of the monitor flyback is different than the filament winding on the Samsung.
John
|
Sorry for late reply, but I had to verify the filament voltage, and you are correct, the arcade monitor board is producing a higher voltage than that of the TV (and I did plug the TV into the tube as a test so it had a proper load as well).
Which one would be correct though, because both used the same CRT part number make and model, and both use monitor boards built by Samsung. So in that case, I'm not sure which is right or wrong.