| Country of Origin | United States |
|---|---|
| Brand | Heathkit |
| Model | Heathkit CT-1 |
| MPN | CT-1 |
Check the listing for details. Vintage Heathkit CT-1 Capaci-Tester. Condition: Used, Made in United States. Listed at 89.00 USD. Heathkit Virtual Museum. Circuit Design: The device is notable for its simplicity, using a single tube that acts as an oscillator, indicator, and self-rectifier, running directly on AC power without a dedicated rectifier circuit.