Quote:
Originally Posted by Andrewausfa
Good repair Phil. I fancy one of these but they're always pricey when they come up for sale. I've never seen one in the flesh, are they around 1/2 the size of the AVO 7/8?
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I've had one since the 80's when it cost me about £25 at M&B's in Leeds.
I've seen the prices they've been fetching and gabberflasted is an understatement. People have gone silly.
1) It's a very nicely made instrument
2) It has much greater impedance than passive instruments
3) A set of 4 AA batteries last for many years, so don't use Duracell
4) It goes down to 10mV FSD DC and 10uA thanks to its chopper amplifier.
5) I put mine on a Datron standards lab calibrator and its accuracy was fine.
6) AC measurements see flat to around 200kHz so it's an audio millivoltmeter
7) It isn't good at low Ohms
8) You seem to get less battery current if you not only turn it off on the main switch, but also select battery test on the left switch.
9) Just AA cells, no funny 15v batteries.
10) I wouldn't risk mains into it set to current or Ohms, I don't think it's as bomb proof as a odern Fluke DMM.
The black cased ones seem rarer than the blue cased one.
So, it's a very very good analogue meter.
Put one on your 'don't miss the chance if you see one' list but don't sell your first-born
David