HICKOK 57MR Ac Ammeter Panel Meter 1940S-1960S 47MR 0-500

( Brand: Hickok ), ( Part Type: Ac Panel Meter ), ( Manufacturer Part Number: 57MR )

Review HICKOK 1940s-1960s Vintage Model Ac Ammeter 0-500 Range Ma Panel Meter

The Hickok 57MR and 47MR are vintage panel meters manufactured by Hickok Instruments during the 1940s to 1960s. These analog meters are designed to measure alternating current (AC) amperage with a range of 0-500 Amperes. The 57MR model measures direct current (DC) amperage as well, but we'll focus on the AC capabilities for this description.

Both the 57MR and 47MR feature a black anodized aluminum housing, making them not only functional but also aesthetically pleasing. The meters have a robust construction with a dial diameter of approximately 4 inches (101.6mm), ensuring they can withstand the rigors of industrial environments.

The pointers of these meters are illuminated with a red incandescent bulb, making them easily readable even in dimly lit conditions. The dial face is divided into a series of calibrated divisions, with each division representing 1 Amperes. The central pointer moves along the scale as the current flows through the meter, indicating the exact measurement.

These meters come with a shunt resistor, which is used to measure currents greater than the meter's internal resistance can handle. The shunt resistor is typically installed in series with the circuit being measured, and the resulting voltage drop is used to calculate the current flowing through the circuit. The Hickok 57MR and 47MR meters are designed to work with shunts up to 5 Ohms.

The Hickok 57MR and 47MR panel meters have a fine accuracy of 1%, making them suitable for various industrial applications where precise measurements of AC current are required. Their vintage design, combined with their high accuracy and rugged construction, makes them highly sought-after by collectors and hobbyists, as well as by professionals working in fields such as electrical engineering and power distribution.

These meters require a minimum input voltage of 100V AC for the pointer to move, and they have a maximum input voltage of 600V AC. They can also be used with a transformer to step down the voltage to a level suitable for the meter.

In summary, the Hickok 57MR and 47MR are vintage AC ammeters with a 0-500 Amperes measuring range. They boast a robust construction, high accuracy, and are illuminated for easy reading. These meters are suitable for various industrial applications and are highly collectible due to their vintage design.

Hickok 57MR and 47MR Analog Ammeters: A Retro Option with Modern Relevance

The Hickok 57MR and 47MR analog ammeters, with their vintage 1940s-1960s design, offer an intriguing blend of historical charm and modern applicability. In this analysis, we will explore the pros and cons of investing in these ammeters, helping you make an informed decision.

1. Analog Accuracy: Hickok ammeters provide precise and real-time measurements of current flow, making them ideal for applications where high accuracy is essential.

2. Rugged Build: Their robust construction with heavy-duty materials ensures longevity and resistance to harsh conditions, making them suitable for industrial settings.

3. Retro Aesthetic: The vintage design can serve as a conversation starter or add a touch of character to your workshop or lab.

4. Wide Current Range: The 57MR model can measure current up to 500 Amperes, while the 47MR model can measure up to 47 Amperes, catering to various applications.

5. Easy-to-Read Dials: The large, easy-to-read dials make it simple to monitor current flow at a glance.

1. Limited Functionality: These ammeters only measure current and do not offer additional features like voltage or resistance measurements.

2. Calibration: Occasional calibration may be required to ensure accurate readings, which can add to the maintenance costs.

3. Power Consumption: Analog meters, including the Hickok 57MR and 47MR, consume more power compared to their digital counterparts.

4. Size and Weight: The vintage design and heavy-duty materials result in larger and heavier devices, which may not be ideal for portable use.

The Hickok 57MR and 47MR analog ammeters are a worthwhile investment for those seeking high accuracy, rugged construction, and a retro aesthetic in their current measurement instruments. However, their limited functionality, occasional calibration needs, power consumption, and size may deter some users.

If you are looking for a high-precision, heavy-duty ammeter for industrial applications and appreciate the charm of vintage design, the Hickok 57MR and 47MR analog ammeters are excellent choices. However, if you require additional functionality, prefer a smaller size, or prioritize energy efficiency, digital ammeters may be a better fit.

Details:

Comes with a Weston box for different model. Hickok Electric model 57MR Millimetres meter. Measurement: A-C Millimetres Alternating Current. It is a vintage analog gauge designed to measure alternating current A-C from 500 millimetres mA.

Key Information. Part Number: MR26W500ACMAR. Selling as pictured. 1940s-1960s Vintage Hickok model 47MR AC Ammeter 0-500 Range MA Panel Meter.

Brand: Hickok Electric.

part #: 57mr prices

• $24.95-$25.00

specifications melsmeters:

• brand: Hickok
• part type: Ac Panel Meter
• manufacturer part number: 57MR

shipping melsmeters:

• type: Fixed
• carrier: FedEx
• service: FedEx Ground / FedEx Home Delivery
• cost: $9.99
• class: Standard
• transit: 3-7 Days

returns melsmeters:

• paid by: Seller
• method: Money back
• policy: Returns Accepted
• time: 30 Days

offer melsmeters:

• quantity: 1
• availability: In Stock
• started: February 2, 2026
• options: Ship-to-home
• sold: 0

seller melsmeters:

• city: Butler, Pennsylvania
• rating: 99.0%
• # reviews: 96905

general melsmeters:

• Test, Measurement Inspection > Test Meters Detectors > Panel Meters
• condition: Used

payments melsmeters:

• credit card: Discover
• wallet: Apple-pay
• other

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