Tektronix 1101A

The Tektronix 1101A is an accessory power supply that delivers regulated DC power to active probes and optical-to-electrical converters when host instruments lack sufficient power output. Housed in a compact stand-alone enclosure, it provides multiple voltage rails with independent current capacity, selectable input voltage operation, and front-panel probe receptacles for two independent devices. The unit incorporates overload protection and operates across a wide AC input frequency range, making it suitable for laboratory and field test environments where probe power requirements exceed instrument capabilities.

– Technical Specifications

• Input voltage: 115 VAC or 230 VAC (selectable); operating range 87–128 VAC or 174–250 VAC
• Input frequency: 48 Hz to 440 Hz
• Maximum power consumption: 30 W
• Output voltages: +15 VDC at 300 mA, +5 VDC at 300 mA, −15 VDC at 300 mA
• Overload protection: Integrated
• Dimensions: 6.25 in. (width) × 6.0 in. (depth) × 3.5 in. (height)
• Weight: Approximately 1 lb (unpackaged)
• Connector type: LEMO S-series receptacles (two front-panel receptacles)

– Key Features

• Dual probe power delivery through independent front-panel receptacles
• Selectable 50-ohm termination for impedance matching with connected probes
• Rear-panel power switch with front-panel power indicator
• Wide AC input frequency acceptance (48–440 Hz) for international operation
• Ground connection via power cord grounding conductor

– Typical Applications

Powers active probes and optical-to-electrical converters in oscilloscope systems and test benches where host instrument power outputs are insufficient or unavailable.

– Compatibility & Integration

Supports Tektronix probes P6201, P6202A, P6230, P6203, P6204, P6231, and P6501, as well as optical-to-electrical converters P6701, P6702, and P6703 when used with appropriate power cords.