CENCO 71248 Alpha Particle Counter Spark Gap Educational

( Brand: Cenco ), ( Part Type: Spark Counter ), ( Manufacturer Part Number: 71248 ), ( Country Of Origin: United States ), ( Radiation Detector Type: Alpha Radiation Alpha Particle )

Review CENCO Alpha Particle Counter Spark Gap Educational

The Cenco Model 71248 Alpha Particle Counter, a vintage spark gap educational instrument produced by Cenco Instruments in 1975, is an intriguing and captivating device for those interested in nuclear physics and radiometry. This counter, designed primarily for educational purposes, offers an engaging hands-on experience for students and hobbyists alike.

Upon first glance, the Alpha Particle Counter presents a compact and tactile design. Its sturdy metal case, with dimensions of approximately 12 inches in length, 7 inches in width, and 4 inches in height, exudes a sense of durability and reliability. The instrument's exterior is adorned with a series of knobs, switches, and gauges, providing an alluring blend of vintage aesthetics and scientific functionality.

At the heart of this counter lies a spark gap mechanism, a time-tested method for detecting and counting alpha particles. This mechanism consists of a high voltage generator, a spark gap, and a Geiger-M ller tube. When an alpha particle enters the Geiger-M ller tube, it ionizes the gas inside, triggering a current that in turn creates a spark across the gap. Each spark generates a corresponding count on the instrument's digital display.

The Alpha Particle Counter features several adjustable settings, allowing users to customize the instrument to various experimental conditions. The most notable of these settings is the voltage control, which can be adjusted from 500 volts to 1500 volts. This control determines the sensitivity of the instrument to alpha particles, making it suitable for detecting particles with a wide range of energies.

Additionally, the instrument includes a built-in amplifier and a meter scale, enabling users to monitor the electrical activity within the Geiger-M ller tube in real time. The amplifier amplifies the small electrical pulses generated by the particles, while the meter scale displays the resulting voltage for each count.

The Cenco Model 71248 Alpha Particle Counter is an exceptional addition to any collection of vintage scientific instruments or a valuable teaching tool for those studying nuclear physics. Its inviting design, combined with the fascinating nature of alpha particle detection, makes it an alluring and captivating device for individuals with a curiosity for the natural world and a passion for scientific exploration.

The Cenco Model 71248 Alpha Particle Counter, also known as the "1975 Spark Gap Educational Model," is a historical instrument used for measuring alpha particle radiation. Here are some pros and cons that might help you decide if this counter is a good purchase for your needs.

1. Historical Value: This alpha particle counter is a vintage instrument that has been in use since 1975. It is an excellent addition to any collection of historical scientific equipment or for educational purposes.

2. Manual Operation: The Cenco 71248 Alpha Particle Counter operates manually, providing a hands-on experience for users. This can be an advantage for those who prefer to work with physical instruments rather than relying solely on digital devices.

3. Affordable: Compared to modern alpha particle counters, the Cenco 71248 is relatively affordable, making it an accessible option for hobbyists, educators, and researchers with limited budgets.

1. Limited Sensitivity: The sensitivity of this alpha particle counter is not as high as that of modern instruments. This means that it may not be able to detect low levels of radiation as accurately as more advanced equipment.

2. Maintenance Requirements: The Cenco 71248 requires regular maintenance, including the replacement of spark gaps and other components. This can add to the cost and time involved in using the instrument.

3. Safety Concerns: Alpha particle counters deal with radioactive materials, and the Cenco 71248 is no exception. Users must take appropriate safety precautions when handling the instrument and its sources to avoid exposure to radiation.

The Cenco Model 71248 Alpha Particle Counter is a unique and historically significant instrument that offers a hands-on experience for those interested in radiation detection. However, its limited sensitivity and maintenance requirements may make it less suitable for professional research applications. For educational and hobbyist purposes, the Cenco 71248 can be an affordable and engaging way to explore the principles of alpha particle detection.

If you are looking for a historical and educational alpha particle counter or are on a tight budget, the Cenco Model 71248 Alpha Particle Counter might be the right choice for you. However, if you require high sensitivity and accuracy for professional research applications, it is recommended that you consider investing in a more advanced and modern alpha particle counter.

Details:

I will answer questions to the best of my technical abilities which is reasonably good being a degrees engineer. SHIPPING NOTE - I try to do my best in selecting the correct weights and sizes will work make deal. Beautiful condition as pictured. I buy consignment stuff, never know what am going to get and only have limited knowledge about my stuff.

If you want something checking out I can do some research as well. Please study the pictures and before buying, ask questions if you are unclear about anything. Be sure the item is what you want before purchasing. Please let me know if I have incorrectly described or identified the item.

Over $5000 raised in 2025. USPS rates are what they and in my opinion overpriced.

part #: 71248 price

• $125.00

specifications dischargedetector:

• brand: Cenco
• part type: Spark Counter
• manufacturer part number: 71248
• country of origin: United States
• radiation detector type: Alpha Radiation Alpha Particle

returns dischargedetector:

• policy: Returns Accepted
• paid by: Buyer
• time: 14 Days
• method: Money back

general dischargedetector:

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

offer dischargedetector:

• quantity: 1
• best offers: True
• sold: 0
• started: June 11, 2026
• availability: In Stock
• options: Ship-to-home

seller dischargedetector:

• city: Blanchard, Oklahoma
• rating: 99.6%
• # reviews: 321

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shipping dischargedetector:

• transit: 2-6 Days
• carrier: USPS
• class: Expedited
• type: Calculated
• service: USPS Priority Mail
• cost: $13.05

Cenco 71248 Is Similar To:

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