21-1-11 VISHAY Spectrol Multiturn Vernier Dial Turn Chrom

Review VISHAY Spectrol Multiturn Vernier Dial Turn 1/4 Inch 13/16 Satin Chrom

Introducing the Vishay 21 Spectrol Multiturn Vernier Dial, a precision instrument designed for accurate measurement and adjustment applications. This 15-turn, 1/4-13/16 inch (6.35 cm) diameter dial features a chrome finish that adds a touch of elegance and durability to any control panel or instrument panel.

The multiturn design of this Vernier dial allows for precise, repeatable adjustments over a large range. The main scale, marked in even units, covers the majority of the dial surface. The Vernier scale, which is an additional smaller scale adjacent to the main scale, enables the measurement of fractional units, adding a level of accuracy that's essential for many applications.

The 15 turns of the dial provide a resolution of 0.013 degrees per turn, which translates to an accuracy of approximately 0.02 degrees per division on the main scale and 0.00025 degrees per division on the Vernier scale. This level of precision makes the Vishay 21 Spectrol Multiturn Vernier Dial an excellent choice for various industries, including aerospace, automotive, medical, and scientific research.

The dial face is protected by a scratch-resistant glass cover, ensuring the dial remains readable and functional even in demanding environments. The dial includes a clear pointer and a Vernier pointer, which can be easily adjusted using the knurled thumbscrews located at the edge of the dial.

The Vishay 21 Spectrol Multiturn Vernier Dial is a versatile and reliable measuring tool that can be used in a wide range of applications where precise measurement and adjustment are essential. Its chrome finish not only adds to its aesthetic appeal but also provides excellent resistance to corrosion and wear, ensuring long-lasting performance.

Pros and Cons of Buying Vishay 21 Spectrol Multiturn Vernier Dial (15 Turn, 1/4-13/16 Chrom)

The Vishay 21 Spectrol Multiturn Vernier Dial (15 Turn, 1/4-13/16 Chrom) is a precision measuring instrument used in various industries. This dial provides high accuracy and reliability for measuring angular positions. Let's explore the pros and cons of investing in this product.

1. High Precision: The multiturn vernier dial is designed for high-precision measurements, making it suitable for applications where accuracy is crucial.

2. Durable Construction: The chromed dial and brass housing ensure a long-lasting and robust performance in different environments.

3. Versatile: This dial can be used in various industries such as automotive, aerospace, medical, and others that require accurate angular measurements.

4. Easy to Read: The large, clear numbers on the dial make it easy to read and record measurements accurately.

5. Adjustable: The multiturn vernier dial allows for fine adjustments, making it more flexible and versatile in various applications.

1. Cost: The Vishay 21 Spectrol Multiturn Vernier Dial is a high-end precision instrument and can be quite expensive compared to other standard measuring tools.

2. Complexity: The design of the multiturn vernier dial may be more complex than standard measuring tools, which can make it more difficult to use for those unfamiliar with the technology.

3. Requires Calibration: Regular calibration is necessary to maintain the accuracy of the dial, which can add to the overall cost and time investment.

In conclusion, the Vishay 21 Spectrol Multiturn Vernier Dial (15 Turn, 1/4-13/16 Chrom) is a high-precision instrument with numerous advantages, including its durability, versatility, and ease of use. However, the cost and complexity of the device may be considered drawbacks for some users. Ultimately, the decision to buy this dial depends on the specific requirements of your industry or application and your budget.

If you need a high-precision measuring instrument and can afford the investment, the Vishay 21 Spectrol Multiturn Vernier Dial is an excellent choice. Its accuracy, durability, and adaptability make it a valuable asset for various industries. If you're on a tighter budget or don't require the high level of precision offered by this dial, there may be more affordable options available that better suit your needs.

Details:

Message for expedited options. This is a Vishay / spectrol service 21 1 11 multiturn vernier dial knob, 13/16 46.02mm diameter, 15 turn precision used for fine tuning potentiates and instruments. The satin chrome metal dial features a fixed window counter wheel 14 that indicates completed turns and graduated circular showing the percent of current partial turn 100%, effectively providing up to approximately 1499 incremental steps resolution. New may or not include original packaging because of storage space, shipping standard economy shipping.

The knob is designed to mount directly a 1/4 6.35mm shaft using #4 40 hex socket set screw adjacent the numeral 75 on dial, and its machined metal construction satin chrome finish make it suitable for industrial test equipment panels where accurate, repeatable multiturn adjustment required. This type of dial is commonly used in calibration instruments, laboratory equipment, and programmable controller setups.

specifications passivecompos:

• brand: Vishay
• mpn: 21-1-11
• part type: Turn
• tolerance rating: 15

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• # reviews: 292
• rating: 100.0%
• city: south el monte, california

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• policy: no returns

general passivecompos:

• category: Business & Industrial > Passive Components > Variable Resistors > Potentiometers

shipping passivecompos:

• type: fixed
• service: ups ground, fedex ground / fedex home delivery
• carrier: ups, fedex
• transit: 5-8 days
• class: standard

offer passivecompos:

• options: ship-to-home
• best offers: true
• in stock #: 5
• started: may 22, 2026
• prices: $97.46–$133.00
• item condition:
  • New – Open box
  • New
  • Used
  • Nuovo
• availability: in stock
• sold #: 7