I'm borrowing an old 2 chan 20MHz analog scope - a Hitachi V-212
Those are actually nice little scopes. Nothing like Tek quality, but still reasonable for a cheap scope.
After I set the trace height to zero (or whatever reference point) -
>there's a big height change (sometimes by 2 or 3 grids) when I change
>the (vert) Volts/DIV to the next setting. This is with no input
>signal. This is abnormal(?), as it should remain fairly stable, right?
>
>Is also weird that the recessed DC balance pots appear bent - facing
>down - and are not readily accessable
You adjust the DC balance pots to get the trace not to move up or down when you change ranges, the fault you mentioned above. It is most likely that the PC board inside has just shifted somewhat, or that it never was quite right so that it's hard to get to these pots.
------------------------------------------------ Jim Adney snipped-for-privacy@vwtype3.org Madison, WI 53711 USA
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