1103

The Tektronix 1103 is a standalone probe power supply that enables probes with Tekprobe BNC connectors to be used with older equipment.

The original version uses traditional LM317T and LM337T linear regulators with a mains-frequency transformer. A later model uses switching regulators fed from an external 12 V_DC, 2.5 A supply.

Key Specifications

Power input	87 to 128 VAC (low) or 174 to 250 VAC (high), 48 to 440 Hz, ≤35 W
Power output	+15 V, −15 V, +5 V, −5 V ; ±2% each ; ≤300 mA each
Offset control	+1 to −1 V, course and fine control, 0 V when disabled

Manual

• Tektronix 1101A and 1102 and 1103 Manual (PDF)

Pictures

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  1103 Front

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  1103 Front

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  1103 Rear (12 V external supply model)

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  1103 outputs