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Does anyone still use an Avo Meter?

alanblaby
Yesterday, I bought, for the bargain price of £15, an Avo Meter 12, ex-RAF, still in its leather box, albeit without leads.

By the side of it was a mint condition Model 9, complete with leads and all accessories in its leather tool roll for £42. I was sorely tempted.

It's hard to believe I was using one of these in the early 90's, they look to be a tool of the 40's and 50's.
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    Denis McMahon:

    I spent middle-career in education including a brief (thankfully) period in schools in the mid-1980s. Practically all metering instruments for class training were digital, probably chosen for cheapness as much as anything. I found it very difficult to impart the concept of size of current and potential difference using these instruments. One problem was scale readings shooting off to infinity when there was any disconnection, accidental or otherwise, of the terminals.  I would not like to be a physics teacher nowadays and don't envy those that are.


    Dare I say it? We had AVOs at school (first half of the 1970s).


    They didn't just teach us to measure amps, volts, and ohms. We learned about parallax and how to eliminate it; sensitivity of meters; shunts; and more. We also learned to treat instruments with respect!


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  • 0
    Denis McMahon:

    I spent middle-career in education including a brief (thankfully) period in schools in the mid-1980s. Practically all metering instruments for class training were digital, probably chosen for cheapness as much as anything. I found it very difficult to impart the concept of size of current and potential difference using these instruments. One problem was scale readings shooting off to infinity when there was any disconnection, accidental or otherwise, of the terminals.  I would not like to be a physics teacher nowadays and don't envy those that are.


    Dare I say it? We had AVOs at school (first half of the 1970s).


    They didn't just teach us to measure amps, volts, and ohms. We learned about parallax and how to eliminate it; sensitivity of meters; shunts; and more. We also learned to treat instruments with respect!


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