Donald Macadie, post-office engineer, invented the first multimeter in the 1920's. The original multimeter could measure volts, amperes and ohms.
Go to highest scale on AC range
And analog multi-tester will have a meter, battery, and switch. The meter is the part that can show the conversion of analog to digital or simply act as an analog display. The battery is the power source and the switch is the part that allows you to select the specific function of the multi-tester.
There is no simple way to test FETs with either analog or digital multimeters. Bipolar transistors can be tested to see if their junctions are OK but they can also have failures that cannot be detected with a multimeter.
Raymond Rodriguez invented it.
in was invented in 1860's
The multitester, also known as the multimeter, seems to have been invented by Donald Macadie, a British Post Office engineer.
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=12&f=G&l=50&co1=AND&d=PTXT&s1=multitester&OS=multitester&RS=multitester
They are easier to read.
the multitester and its parts
The black probe is negative.
AMBOT!
by using multitester
Turn the dial to the omega symbol.
By using a Multitester.
Go to highest scale on AC range
A multitester scale refers to the range of measurements that a multimeter can make, such as volts, amps, and ohms. It provides a set of divisions for each unit of measurement that allows users to accurately read the values being measured. Different multitesters have different scales to accommodate various ranges of measurements.
The plus/minus (red/black) terminals are for testing Direct Current (DC) power sources.