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Old 28th Mar 2011, 6:14 pm   #6
Alastair E
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Join Date: Jun 2009
Location: Swansea, South Wales, UK.
Posts: 32
Default Re: Replacement meter for Avo 160

What about using any old meter movement driven by an Op-Amp, with a resistor input of 3250 ohms, and its gain set to give FSD at 97.5mV...?

--It will then duplicate the operation of original meter.

Adapt the movement to fit the frame of the original meter-movement case, use the same original scale, and who would know the difference?

Source a regulated supply for the op-amp, and you're all sorted.

Prolly MUCH cheaper than getting an Avo 160 meter rebuilt!
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