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| So this is how it starts... |
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| rsjsouza:
An analog meter is an interesting guy in certain scenarios, but it is certainly not indispensable. I love the EM7000 and, if I didn't have already my late dad's ICE 680R fully restored, I would definitely consider it. As for the OP's dilemma, I would do what others have mentioned: keep the 175, get the DER EE DE-5000 LCR meter and it will cover a very wide range of measurements. |
| J-R:
I still have my first analog meter from when I was about 13. It was an ArcherKit 28-4013A from Radio Shack that I had to assemble. It never saw the light of day once I got a DMM. I also have a couple analog AC meters in my TEA collection. But in my opinion I've not seen a 100% absolute requirement for one. Mostly personal preference. Technically the bar graph is faster than the needle. Be sure to set it to manual range so the scale is not changing on you. Also plenty of bench DMMs can do fast sampling to a computer for processing or you can configure internally the number of samples along with specific filtering modes. For example with a Keithley you could use the repeating filter. For lower impedance measurements, why not just place a resistor in parallel with your DMM? |
| mojoe:
--- Quote from: J-R on January 09, 2024, 03:28:19 am ---For lower impedance measurements, why not just place a resistor in parallel with your DMM? --- End quote --- Because it's not a fixed input impedance. Go look at an analog meter. Most are labeled 20K/Volt or similar. Some of the old test and adjustment procedures counted on this when specifying what value to adjust for. Some very early gear needed a specific meter with an even lower Ohms/Volt to do a proper adjustment. The Hickock tube tester comes to mind. If you never work on anything but equipment made in recent decades, then none of this matters, and you'll probably never need an analog meter. |
| J-R:
The input impedance of a DMM is similar to an analog meter where it could change depending on the range. But it seems to me that the DMM still has the advantage where it typically only has two or three values for you to keep track of, while an analog meter will have something different for each range, so typically twice or three times as many. So it's still a trivial task to set the range on your DMM and use a specific resistor in parallel to reach any desired value. |
| mojoe:
Sure, whatever. No point in continuing this. |
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