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AVOmeter compared to cheap modern digital meter

Discussion in 'Electronic Repair' started by Zak, Jun 26, 2005.

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  1. Zak

    Zak Guest

    How do bargain basement modern digital meters perform compared to
    the old analogue meters from 30 years ago like the AVOmeter?

    -----------

    Thirty-odd years ago my friends had AVOmeters. I would look on
    with some envy. Remember AVOs? I think they were mainly a UK
    thing. 10 by 8 inches and about 4 inches thick. See this:-
    http://www.richardsradios.co.uk/Images/AVO.jpg

    Today I can buy a regularly stocked item like the super-cheapo
    single-chip digital multimeter from a UK shop like Maplins for £8
    ($8) and that includes the battery. Although Maplins call it a
    "domestic tester" it is more than just that:

    600V-200V-20V-2000mV-200mV plus 600VAC-200VAC
    10A-200mA-20mA-2000uA-200uA
    2000kO-200kO-20kO-2000O-200O
    transistor and functions
    overall accuracy approx +/-0.5% to +/-1.0%

    <http://www.maplin.co.uk/module.aspx?ModuleNo=37279&doy=26m6>

    How does something as ridiculously cheap as this meter compare, in
    terms of measurement accuracy, to an old stye AVOmeter?
     
  2. SQLit

    SQLit Guest

    AVO is still producing meters and test equipment. Their meggar and ground
    tester are some of my favorites.

    Accuracy and speed is the only differences that I know of. I still have an
    old Sperry analog meggar. Works fine for the purpose, I have no reason to
    upgrade it.
     
  3. NSM

    NSM Guest

    I wouldn't sell my Salford Selectest Super 50 - but I don't use it! You can
    often buy those on eBay for a modest price, whereas the Avometers were going
    for a lot more.

    Why do you ask?

    N
     
  4. Jerry G.

    Jerry G. Guest

    Today, you can buy a modern digital volt meter for a few dollars that
    would out perform your old AVO meter by better than a thousand to one.
    The old AVO meters would not be safe to take measurements in most of
    today's sensitive electronic equipment.

    If you have any old AVO meters in excellent condition, they have resale
    value as antiques for collectors.


    Jerry G.
    ======
     
  5. quietguy

    quietguy Guest

    about 30kg lighter!!

    David - who once upon a time lusted after an Avometer, but as a kid
    never had the money and so settled for a Western
     
  6. N Cook

    N Cook Guest

    I'm a bit of a Luddite but not on DVMs.
    The only facility I miss is for observing fluctuating DC levels where my
    Fluke nominal LCD analogue scale
    is useless.
    I certainly don't miss those high V batteries for high ohms, the few K
    loading on
    circuits rather than Megs and the infuriating mechanical cut-outs that
    you only had to drop something on the bench and that damned button would
    jump out.

    Diverse Devices, Southampton, England
    electronic hints and repair briefs , schematics/manuals list on
    http://home.graffiti.net/diverse:graffiti.net/
     
  7. Peter Duck

    Peter Duck Guest

    In message <[email protected]>
    At least as well (within their more limited ranges), plus being
    quicker/easier to read, or listen-to for continuity-checks: perfectly
    adequate for most purposes.

    I've three of these (I couldn't resist the last two - 'buy one, get one
    free' for, at the time, £4.99 IIRC), and use them far more than either
    my 'upmarket' digital meter or venerable Avo 8, still needed for
    measuring DC kilovolts, AC <current or signal-voltages), and the
    fluctuating values for which 'analogue' beats 'digital'.

    The mechanical construction of the switching-arrangements is the main
    weak point, but (as so many products nowadays) they're a constant
    reminder of how hard the Chinese have to work to scratch a living, and
    how difficult it is for the affluent West to retain/regain our
    competitiveness ...
     
  8. NSM

    NSM Guest


    Sometimes useful to ignore leakage currents on AC circuits!

    N
     
  9. Guest

    I still use an Avo Mk8.On most jobs I find it better than the digital
    stuff.With digital I have to think if the number is good or bad with
    analogue I know instantly from the position of the needle.In Scotland a
    good Avo in a case can usually be had for £30.
    regards,Mark.
     
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