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Spintronic Ammeter

Spintronic Ammeter - Main image
$3.32 $5.54 In stock

Category: Extra parts

Overview

Spintronic ammeters indicate the speed of current by the pitch of sound they make. The more current, the higher the pitch.

Detailed description

The pitch of sound generated by the spintronic ammeter is directly proportional to the current running around it. A small wedge attached to a diaphragm slides over a bumpy surface. As the wedge moves up and down over the bumps, it generates sound in the diaphragm.

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.6 / 5 · 5 reviews)

Nicholas ★★★★★

The pitch of sound changes so clearly with current that I can hear small fluctuations without looking at a display. It's surprisingly intuitive to use.

Olivia ★★★★★

The pitch rises so smoothly as the load climbs that I stopped watching the needle and just listened. Took me a day to stop flinching at the high end, but now I can tell a fault by ear before the meter even settles.

Victoria ★★★★★

Wasn't sure about reading current by ear at first, but now I barely glance at the dial. The pitch climbs smoothly as the current rises, so I can tell a small drift just by listening across the bench.

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