Nakamura Galvanometer, GM-6000, with Shield

Features
* overload prevention device protects meter against any current or voltage overload
* four distinctive colors used for different types of meters enable instant identification
* accuracy with JIS class 2.5 with high internal resistance
* long circular scale (84mm) provides easy and accurate reading
* multi-purpose terminals employed to prevent displacement of heads
* internal mechanism of instrument is completely visible
* lightweight, great impact strength, and no leakage.

By incorporating an amplifier in a conventional galvanometer, the A05-7120 becomes a supersensitive device. This galvanometer is 1000 times more sensitive then available conventional models. The indicator oscillates visibly during experiments of electromagnetic induction using a single lead wire and either a bar or U-shaped magnet.

The A05-7120 may be employed as an ordinary galvanometer by simply turning off the selector switch which disconnects the amplifier circuit. The use of a differential amplifying circuit in the current amplification unit provides for more stable readings that are not significantly affected by the operation of instruments in the vicinity.

Specifications:
*Dimensions: 110 x 126 x 137mm
*Weight: 350g.
*Voltage sensitivity: 1.6 x 10-4V/mm (meter only)
*Current sensitivity: 2.5 x 10-6A/mm
*Full scale: + or - 50mA
*Amplifier unit: differentail amplifying circuit employed amplifying ratio= 60dB (x1000)
*Power supply: +9V, equipped with 006p transistor batteries (2)
*Equipped with: anti-overload device each.

SKU A05-7120