Convergence adjustment

[freckleface]

I've noticed my PC CRTs have convergence adjustments in the OSD. As far as I can tell, arcade monitors don't.  Why the difference?

[grantspain]

most arcade monitors are analogue and therefore can only be adjusted manually on the yoke whereas most pc monitors are digital therefore have a memory to save info into.
there are some more modern arcade monitors that are digital that may have a convergence menu and there are alot of rear projectors used on arcade games that have this feature like the toshiba used on sega  and hitachi used on namco

[freckleface]

Hmm. Well, the Retroblast reviews of both the WG9200 and Betson I recall saying were digital but I don't remember the convergence being adjustable. I asked a local arcade tech and I think he said the boards were digital but not the yoke electronics...something like that.

[Ken Layton]

Yes, the Wells-Gardner digital monitors like the D9200 use conventional convergence procedures like manually adjustable rings on the neck and moving the yoke physically.

[freckleface]

Thanks, Ken. What about on Betson or Wei-ya? And what brands are using Goldstar tubes? One more: how come the pixel lines on arcade monitors (and CRT TVs, I notice)  progressively spaced?