Re: ballantine 1010a oscilloscope

I checked the oscilloscope for a small adjustment screw on the cover. The
only thing I found was a "cal" screw that only changes the vertical
displacement of the trace. Turns out I will need to open the case.

Before I do that, how can I safely handle a CRT with power on? Just don't
touch the terminals?

Thanks.

"Bob Masta" <NoSpam@xxxxxxxxxxx> wrote in message
news:431c3dc4.746577@xxxxxxxxxxxxxxxxxxxxx
> On Sun, 4 Sep 2005 13:19:02 -0400, "Mike" <nospam@xxxxxxxxxxx> wrote:
>
>>Hello,
>>
>>I picked up a Ballantine 1010A this morning at a reasonable price. It
>>appears to be functional, but the only problem is that the horizontal
>>sweep
>>trace is slanted on the screen, rising to the right. Is there a mechanical
>>adjustment required? Would anyone have a manual on this scope?
>>
>>Thanks for the help.
>>Mike
>>
>>
> Do't know anything about your particular scope, but in general
> there should be a "trace rotation" trimpot on the front panel...
> often just a little hole for you to poke a small screwdriver through.
> I suppose that on less expensive scopes, you might have to manually
> rotate the CRT. Use caution! You would want to have the trace
> running to see when it is level, so spend some time first just
> studying the layout to see how to do that safely. I'd guess there
> should be some clamps you can loosen with the power off,
> rotate carefully with power on, and tighten again with power off.
> And do note that there may be a residual charge on power-off,
> though not as bad as a TV it could still be dangerous.
>
> Also, however you end up doing the adjustment, you will
> want to do it with the scope in the same compass orientation
> as you will actually be using it on your bench.
>
> Best regards,
>
>
> Bob Masta
> dqatechATdaqartaDOTcom
>
> D A Q A R T A
> Data AcQuisition And Real-Time Analysis
> www.daqarta.com
> Home of DaqGen, the FREEWARE signal generator


.

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