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Vintage Test Gear and Workshop Equipment For discussions about vintage test gear and workshop equipment such as coil winders.

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Old 30th Apr 2011, 7:12 am   #1
ex 2 Base
Tetrode
 
Join Date: Nov 2009
Location: North Yorkshire
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Default Meguro MO1255 'scope.

I have a MEGURO MO1255 100Hz oscilloscope and I need a manual for it. The dispay is not sharp and crisp as to be expected, any ideas/comments would be appreciated.Ted
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Old 22nd Nov 2013, 12:28 am   #2
cuddlyable3
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Default Re: Meguro MO1255 'scope.

I also have a MEGURO MO1255 100Hz oscilloscope and poorly legible scans of the circuit diagrams (but better than nothing). I am happy to send you the scans if you need them, OR I would be even happier if you managed to find a manual that will help me! My scope works fine apart from the Trace Separation knob which doesn't.
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Old 22nd Nov 2013, 12:22 pm   #3
maninashed
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Default Re: Meguro MO1255 'scope.

Is this a scope that has been in regular use? If not, leave it on for a while and see if things improve. If there is no improvement, I would check all supply voltages, for correct voltage and ripple level. You may need use of another scope for this. If all is in order check the resistors in the focus circuit. You may find some may gave drifted high or open circuit.
Bill
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