
( Brand: Heathkit ), ( Manufacturer Part Number: HD-20 ), ( Country/region Of Manufacture: United States )
The Heathkit HD-20 KHz Crystal Calibrator is a pre-owned, high-quality test and measurement instrument that is essential for any electronics enthusiast or professional. This calibrator is designed to accurately measure the frequency of crystal oscillators, which are commonly used in various electronic devices such as watches, clocks, and communication systems.
The HD-20 KHz Crystal Calibrator features a simple yet intuitive analog display that displays the measured frequency in kilohertz (kHz). The calibrator has a frequency range of 0 to 20 kHz, with a high resolution of 0.1 Hz. This makes it ideal for calibrating and adjusting crystal oscillators with high precision.
The calibrator is constructed with high-quality materials, including a sturdy aluminum case and a durable dial. It has a compact size, making it easy to transport and use in different locations. The calibrator also has a built-in battery, which allows it to operate without an external power source.
The HD-20 KHz Crystal Calibrator is a pre-owned item, but it is in excellent condition and has been thoroughly tested to ensure that it functions as expected. It comes with all of its original accessories, including a calibration certificate and a user manual. The calibrator is also backed by a 30-day money-back guarantee, giving you peace of mind when making your purchase.
Overall, the Heathkit HD-20 KHz Crystal Calibrator is a reliable and accurate tool for calibrating crystal oscillators. Its simple design, high precision, and compact size make it an excellent choice for electronics enthusiasts and professionals. Whether you need to calibrate a watch, a clock, or a communication system, the HD-20 KHz Crystal Calibrator is the perfect tool for the job.
Pros of buying a pre-owned HD-20 Heathkit Khz Crystal Calibrator:1. Cost-effective: Pre-owned items are typically cheaper than new ones, making this calibrator an affordable option for hobbyists and professionals looking for a reliable tool.
2. Good condition: If the seller provides clear photos and detailed descriptions, it's possible to gauge the condition of the calibrator. If it's well-maintained, it could be a great buy.
3. Availability: Pre-owned items are often easier to find than new ones, especially for niche or discontinued models like the HD-20 Heathkit Khz Crystal Calibrator.
Cons of buying a pre-owned HD-20 Heathkit Khz Crystal Calibrator:1. Unknown history: It's impossible to know the full history of the calibrator, including any previous repairs or maintenance. This could potentially lead to unexpected issues down the line.
2. Age and obsolescence: Older models like the HD-20 may not be compatible with modern technology, or their parts may be hard to find.
3. Lack of warranty: Pre-owned items typically do not come with a warranty, which could leave you without recourse if the calibrator malfunctions or breaks.
Conclusion: If you're in the market for a reliable, cost-effective crystal calibrator and you're comfortable with the potential risks associated with pre-owned items, a pre-owned HD-20 Heathkit Khz Crystal Calibrator could be a good option. However, it's crucial to thoroughly research the seller, inspect the item, and consider whether the potential benefits outweigh the potential drawbacks. If you're unsure, it may be worth investing in a newer model with a warranty.
The round ones are just too difficult to find and expensive when you do. This unit works and has no other user modifications or added holes. It is used to help calibrate your receiver dial the nearest 100 khz. This is a Heathkit 100 khz marker calibrator.
This normally uses the 'round' 9-volt battery, but battery connector has been replaced with a standard 'snap' type. The older 9v battery connectors have been replaced with a new snap connector.