
CI-1079 Comparison
| photo | price | summary | rating |
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![]() | $75.00 | Condition is Used, Vintage Heathkit Model CI-1079 Digital Tachometer RARE!, shipping cost = $16.45 | 100.0% |
| photo | price | summary | rating |
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![]() | $14.99 | Condition is Very Good, Heathkit Assembly Manual CI-1079 Digital Tachometer, shipping cost = $8.30 | 99.9% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $9.99 | Condition is Acceptable, Original Heathkit Electronic Kit User Manuals U-PICK, shipping cost = $5.99 | 100.0% |

The Heathkit CI-1079 Manual Digital Tachometer is an essential tool for any lab, workshop, or engineering project that requires accurate measurement of rotational speed. This tachometer, manufactured by Heathkit, a renowned name in the world of electronics kits and test equipment, offers high precision and reliability.
The CI-1079 features a large, easy-to-read 1-inch (25.4 mm) seven-segment digital display, enabling clear measurement of RPM (Revolutions Per Minute) values. The tachometer is capable of measuring rotational speeds ranging from 0 to 10,000 RPM with an accuracy of 1% up to 6,000 RPM and 2% from 6,001 to 10,000 RPM. The tachometer utilizes a high-quality, low-drift quartz crystal oscillator to ensure consistent accuracy.
The tachometer employs a manual input method to measure rotational speed. A test lead with a probe is provided for this purpose. The probe is attached to the shaft or pulley of the rotating machinery using an optional Heathkit CI-1112 probe mounting kit or a suitable alternative. A direct mechanical connection is recommended for the most accurate results.
The CI-1079 tachometer is housed in a robust, anodized aluminum case, ensuring durability and protection against environmental conditions. The unit requires a DC power supply of 100-240V AC, 50-60Hz, and consumes approximately 1.5 watts of power. The tachometer also includes a built-in self-diagnostic function, which checks the internal components and alerts the user of any potential issues. This feature enhances the reliability and maintenance capabilities of the device.
In summary, the Heathkit CI-1079 Manual Digital Tachometer is a high-precision, versatile, and durable instrument designed for measuring rotational speeds in various applications. Its large digital display, manual input method, and robust construction make it an ideal choice for engineers, technicians, and hobbyists.
The Heathkit CI-1079 Manual Digital Tachometer is a popular choice among hobbyists and professionals for measuring rotational speed. Here are some pros and cons to help you make an informed decision about purchasing this tachometer:
Pros:1. Accuracy: The Heathkit CI-1079 is known for its accuracy in measuring rotational speed.
2. Manual Operation: Some users prefer manual tachometers over digital ones with built-in displays, as they offer more control and are less prone to electrical interference.
3. Affordability: Compared to high-end digital tachometers, the Heathkit CI-1079 is quite affordable.
4. Versatility: This tachometer can be used to measure the RPM of various types of machinery, including engines, pumps, and generators.
5. Easy to Use: The Heathkit CI-1079 is relatively easy to use, even for those with little experience using tachometers.
Cons:1. No Built-in Display: Since this is a manual tachometer, it does not have a built-in display to show the RPM readings. Instead, users must read the RPM value from the dial.
2. Requires Calibration: Like all tachometers, the Heathkit CI-1079 requires calibration to ensure accurate readings.
3. Limited Inputs: This tachometer can only be used with one rotating shaft at a time.
Conclusion:The Heathkit CI-1079 Manual Digital Tachometer offers accurate RPM measurements, ease of use, and affordability, making it a great choice for hobbyists and professionals who require a reliable tachometer for measuring the rotational speed of various types of machinery. However, its lack of a built-in display and limited inputs may be a drawback for some users. Ultimately, the decision to purchase the Heathkit CI-1079 depends on your specific needs and preferences.
Recommendation:If you are looking for an accurate, affordable, and easy-to-use manual tachometer for measuring the RPM of various types of machinery, then the Heathkit CI-1079 Manual Digital Tachometer is a great choice. However, if you require a tachometer with a built-in display or the ability to measure the RPM of multiple shafts at once, then you may want to consider other options.
Details:
I enjoy helping those might have talked to on the radio waves. Cables not listed as shielded are. Heathkit assembly manual CI-1079 digital tachometer, see pictures. If it is not listed or pictured, included.
Test equipment pictured showing testing is not included unless specifically mentioned in the listing. Maybe we missed something in the ; may get lost shipping or who knows what. We typically ship the same day from east coast. Your satisfaction is our number one priority.
We just can't do it. Pictures are of the actual item. Sometimes, things happen, and we miss the mark.
specifications vintamanual:
- brand: Heathkit
- mpn: Ci-1079
- part type: Manual
- unit type: Unit
- country of origin: United States
- california prop 65 warning: Warning
seller vintamanual:
- rating: 99.8%
- # reviews: 7807
- city: raleigh, north carolina
general vintamanual:
- category: Electronics > Audio Video > Parts Accessories > Vintage Manuals
returns vintamanual:
- policy: no returns
payments vintamanual:
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- credit card: visa
shipping vintamanual:
- class: standard
- type: calculated
- transit: 4-9 days
- carrier: usps
- service: usps ground advantage
offer vintamanual:
- availability: in stock
- sold #: 13
- prices: $9.99–$75.00
- item condition:
- Used
- Very Good
- Acceptable
- best offers: true
- in stock #: 3
- started: november 1, 2025
- options: ship-to-home
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