One touch of the sensor and the LEDs run. When you take your finger off the sensor, only one will be lit, which cannot be predicted. This circuit must not be powered by a source without a transformer. We found it in a 1981 documentation.

One touch of the sensor and the LEDs run. When you take your finger off the sensor, only one will be lit, which cannot be predicted. This circuit must not be powered by a source without a transformer. We found it in a 1981 documentation.