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 a traditional linear power supply with a mains-frequency transformer and LM317T / LM337T regulators.
Later versions changed to an external 12 VDC, 2.5 A supply, with switching regulators providing the four output voltages.
Key Specifications
| Power input | 87 to 128 VAC (low) or 174 to 250 VAC (high), 48 to 440 Hz, ≤35 W |
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| 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 |
Prices
- $528 in 1989 ($1,160 in 2021 dollars)
- $655 in 1995 ($1,170 in 2021 dollars)
Pictures
Internal PSU model
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Front panel
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Back side
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Internal
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Internal
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1103 Front
External PSU model
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Front panel
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Back side
Connector
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Tekprobe BNC plug
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Tekprobe BNC socket on 1103
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Tekprobe power pins
