G775

The G775 Indicator Panel is a connector card designed to isolate logic levels, allowing them to directly drive indicator bulbs without the need for separate light drivers. It functions with an indicator panel that provides the necessary bias voltage.

Key specifications include:

• Inputs: All inputs are 0 and -3V, each presenting a 3-unit load.
• Outputs: Connects to the indicator board via a Flexprint cable.
• Power Dissipation: 150 mW.

The schematic for this proprietary circuit, copyrighted by Digital Equipment Corporation in 1969, is provided for test and maintenance purposes only.