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Author Topic: What was this?? seems a multimeter but no ADC...  (Read 2463 times)

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Offline sorinTopic starter

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What was this?? seems a multimeter but no ADC...
« on: November 25, 2012, 08:31:48 am »
Seems a multimeter but don't have any ADC just some Operational amplifier and logic circuit
Seems to be from Germany
Also has just 2 terminal, and use a mechanical switch to measure current
Seems to be older than me
Sorry for the image quality.
« Last Edit: November 25, 2012, 08:34:03 am by sorin »
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Offline SeanB

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Re: What was this?? seems a multimeter but no ADC...
« Reply #1 on: November 25, 2012, 09:37:37 am »
The Intersil cerdip is the ADC unit.
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Offline sorinTopic starter

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Re: What was this?? seems a multimeter but no ADC...
« Reply #2 on: November 25, 2012, 09:45:20 am »
all intersil are operational amplifier with pA bais current
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Offline SeanB

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Re: What was this?? seems a multimeter but no ADC...
« Reply #3 on: November 25, 2012, 09:59:57 am »
It will be the comparator in the single slope converter, the logic does the counting up and other logic that you would normally get in a single chip unit.
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Offline ju1ce

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Re: What was this?? seems a multimeter but no ADC...
« Reply #4 on: November 25, 2012, 11:24:14 am »
It seems like you don't have strict safesearch on :D
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Offline nitro2k01

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Re: What was this?? seems a multimeter but no ADC...
« Reply #5 on: November 25, 2012, 12:03:53 pm »
Quote from: ju1ce on November 25, 2012, 11:24:14 am
It seems like you don't have strict safesearch on :D
I tried searching for dmm 1809:01 and that result actually comes up regardless of the SafeSearch setting. Well, Dave sometimes calls DMMs pornographic, but that's silly. What's next? "Hot power supply double penetrates sexy DMM, almost blows fuse and yellow rubber off"
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Whoa! How the hell did Dave know that Bob is my uncle? Amazing!
 
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