UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Miguel Lopez · 9th Feb 2023, 4:01 pm

Here what I have done with the 7135 voltmeter. It is already working. Calibration is perfect by adjusting the reference voltage, but as trobbins anticipated the last digit has some dithering.
It moves two or three divisions while measuring. At zero it almost doesn't move, just changing the polarity signus from time to time, and maybe one division from time to time too.
I have done nothing to eliminate the dithering yet. Can you recommend me any way to minimize it?

9th Feb 2023, 4:01 pm	#16
Miguel Lopez Heptode Join Date: Dec 2011 Location: Mayabeque, Cuba Posts: 617	Re: Digital voltmeters....and more Here what I have done with the 7135 voltmeter. It is already working. Calibration is perfect by adjusting the reference voltage, but as trobbins anticipated the last digit has some dithering. It moves two or three divisions while measuring. At zero it almost doesn't move, just changing the polarity signus from time to time, and maybe one division from time to time too. I have done nothing to eliminate the dithering yet. Can you recommend me any way to minimize it? Attached Thumbnails __________________ When electrons move, things happen. There's nothing you can do that can't be done.