Sweep Gate

Q812 and Q814 compose the B Sweep Gate Circuit. They also form an emitter-coupled stage where only one transistor can be conducting at any time. The input signal to the stage is the positive-going trigger signal from the B Fire Trigger TD in the B Trigger Generator Circuit. The signal at the collector of Q812 is connected to the B Z Axis Gate Circuit to control CRT blanking and to generate the + B GATE signal. The signal at the collector of Q814 is connected to the emitter of the Sweep Disconnect Amplifier stage (Q1084) in the B Sweep Generator Circuit to initiate B Sweep generation.

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