description Heathkit IT-11 Overview
The Heathkit IT-11 is a capacitor-checker kit made by the Heath Company for electronics hobbyists and service technicians. It provides tests for capacitance and leakage, allowing users to evaluate capacitors during circuit repair and maintenance. Like other Heathkit instruments, it was assembled by the purchaser from supplied parts and instructions, making it both a piece of test equipment and a hands-on electronics project.
help Heathkit IT-11 FAQ
When was the Heathkit IT-11 introduced?
The IT-11 capacitor checker came onto the market in 1961. Heathkit replaced it with the IT-28 in 1968, and the IT-11 remained in production into the 1970s. [Heathkit.nu](https://www.heathkit.nu/heathkit_nu_IT-11.html)
What can the Heathkit IT-11 test?
It tests capacitor value, leakage, shorts, and opens, and it can also measure resistance and inductance. The manual also describes checking transformer turns ratios with an external standard. [IT-11 manual](https://manualzz.com/doc/23301866/heathkit-it-11-capacitor-checker-user-manual)
How does the IT-11 show a capacitor test result?
The instrument uses a bridge circuit and an electron-beam eye tube as its visual indicator. A properly adjusted eye opening or closing helps the user judge capacitance balance and leakage without a digital display. [IT-11 manual](https://manualzz.com/doc/23301866/heathkit-it-11-capacitor-checker-user-manual)
Does the IT-11 discharge capacitors after testing?
Yes, the operating instructions direct the user to return the bridge-leakage switch to the discharge position after a leakage test. The eye tube opening indicates that the test capacitor has discharged and is safer to handle. [IT-11 manual](https://manualzz.com/doc/23301866/heathkit-it-11-capacitor-checker-user-manual)
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