vintage physics instrument Box D

Rotary Resistance Box

Description: This device is used to provide a variable resistance for electrical experiments. The central knob allows the user to select a specific resistance value from the scale. It is a fundamental tool in circuit analysis and calibration.

Milliammeter (Milli-Volt-Ampere Meter)

Description: This instrument measures small currents, voltages, or power in milliamperes, millivolts, or milliwatts. It is commonly used in low-power electrical experiments for precision readings.

Capacitor Array Board

Description: This board contains multiple capacitors with labeled capacitance values (in microfarads, µF). It allows for quick selection and use of capacitors in experiments involving electrical circuits or resonance studies.

Kelvin-Varley Divider

Description: This precision instrument is used to generate highly accurate voltage ratios or for resistance calibration. It features multiple switches and dials for fine adjustments and is often employed in metrology labs.

Precision Condenser

Description: This is a specialized device for measuring and calibrating capacitance with high accuracy. It is used in research labs for experiments involving electric fields and dielectric materials.

: Resonance Frequency Meter

Description: This instrument measures resonance frequencies in the range of 30–500 MHz. It is commonly used in radio frequency experiments and electronic circuit testing. The large central dial allows precise adjustments, making it valuable for tuning circuits.

Capacitor Box

Description: This adjustable capacitor box is used to provide precise capacitance values for circuit testing. It allows users to select specific capacitances using switches, useful for experiments involving tuning and resonance.

Portable Wattmeter

Description: A wattmeter measures electrical power in a circuit. This portable unit has multiple input options and is calibrated for precise measurements of AC/DC power in industrial or laboratory settings.

Mavometer (Milliammeter and Voltmeter)

Description: This versatile instrument measures small electrical currents (milliamperes) and voltages (millivolts). It features precise calibration and is ideal for experiments requiring low-level electrical measurements.

Galvanometer

Description: This sensitive instrument measures small electrical currents by detecting deflection in its needle. Enclosed in a wooden case, it is used for precision current measurements in scientific and educational experiments.

Induction Coil

Description: An induction coil generates high voltage from a low-voltage source using electromagnetic induction. This coil setup is used in physics experiments to demonstrate the principles of electromagnetism and spark generation.