wrote:
>
> On Mon, 2 Mar 1998, Clay Cowgill wrote:
>
> > Uhh, oh. Off charter again... Uhhhhh, oh, and I'm going to put the
> > same kind of amp in my "worlds most beat to death Asteroids machine" to
> > try to get rid of a weird 60hz hum. (It's odd-- hums like mad *if* the
> > control panel harness is plugged in. Even "beats" in sequence with the
> > blinking LEDs on the control panel...)
> >
>
> Try filtering the 10.3V supply some more, first....this sounds
> like (no pun intended) noise on the 10.3V supply, which is unregulated,
> and goes to both tthe CP and the audio amp.
>
> Joe
I've noticed that different Asteroids boardsets in the same cabinet
produce these same beats in sequence with the blinking LEDs on the
control panel. I.E, depending on the boardset I've tested, it has
either exhibited this phenomenon or not. Strange, no? (Strange yes!)
Joel-
