Resistance Decade Box

Decade boxes are made for resistance, capacitance, and inductance, the values of which can be increased incrementally by way of switching the points of contact for the input and output throughout a series of the respective components. The interface for these devices will usually consist of dials or adjustable tape counters, and are operated in-circuit and without any external power source.

• The DR04-07 boxes use metal film resistors offering 0.5% accuracy and atemperature 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 < 6mΩ and R < 9mΩ for DR08).
• Max power rating : 0.5 W.

Type Weight Decades Multiplier in OHMS Totale
Kg 0.1 1 10 100 1K 10K 100K 1M Resistance
DR 04 1 4 • • • • 11,110 KΩ
DR 05 1,4 5 • • • • • 111,110 KΩ
DR 06 1,44 6 • • • • • • 1 111,110 KΩ
DR 07 1,52 7 • • • • • • • 11,111 110 MΩ
DR 08 1,4 8 • • • • • • • • 11,111 111 MΩ
Accuracy % 3 1 1 1 1 1 1 1
Max current 2.3A 700 mA 200mA 70mA 20mA 7mA 2 mA 0,7 mA