Quote:
Originally Posted by Superscope
Indeed it is Mike. November 1959.
It will be a Mk II.
Still a very useful Device, just not on electronics.
More power orientated.
Ian
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To emphasise Ian's point, a high sensitivity multimeter such as the Model 8 causes least distarbance to the circuit under test on voltage measurements but the lower "sensitivity" of the Model 40 is an advantage on current measurements because the resistance between the terminals is less than the Model 8 on current ranges.
For some fault-finding measurements it can actually be useful to have a low impedance meter when measuring voltages in circuits intended to supply significant loads. For example, a high resistance relay contact might be causing a fault under load, but if no great load is in place the voltage will be essentially the open-circuit voltage at the downstream contact.
You just have to have, at least, one of each!
PMM