Presentation Vintage Industrial multimeter BBC Goerz Metrawatt MA4 S

[Kiriakos GR]

What do you consider as reasonable price, for these multimeter, at the market of used ones?

For a multimeter in pristine condition and undamaged, I would not pay more than 50 EUR.
The electronic circuit includes large amount of custom made components, these are close to impossible to be found as spare parts.
Metrawatt of our times, this is disconnected from that era of products.

Any survived up to date, MA 4S / Metravo 4S, they manage to live that long, thanks to their:
• Extended Number of Fuses and Relay electrical protection circuits.
• Printed circuit this is covered, due our well known Green protective varnish, this kept the PCB safe.
• Along of their soft carrying bag, which this kept intact multimeter mechanical parts, along it casing and aesthetics. 


Here I made a topic with relative historical facts.
https://www.ittsb.eu/forum/index.php?topic=2062.0

[Kiriakos GR]

Since August 02 2013, never touched my multimeter calibration.
Back then, I was not having the necessary precision references and sources, as I do now.

DCV & DCmA Calibrator | Highest precision resistors decade box | ACV stabilized source along Variac Transformer.

In conclusion:
I feel today extremely happy, because even the oldest multimeter in my bench, this is Calibrated and adjusted, with quality of sources that neither Metrawatt lab had at 80s.   

The only thing missing, this is a Calibration sticker.