* The DR04-07 boxes use metal film resistors offering 0.5% accuracy and a
temperature coefficient of 50 ppm/°C.
* The DR08 box use thick film resistors offering 1% accuracy and a
temperature coefficient of 100 ppm/°C
* Output of each decade on 4mm safety socket.
* Screen outputs (front panel and case) on safety earth socket.
* Robust switches with metal frame and gold-plated contacts.
(R < 6m and R < 9m for DR08).
* Max power rating : 0.5 W