Sweep Gate

Q862 and Q864 compose the A Sweep Gate Circuit. They 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 A Fire Trigger TD in the A Trigger Generator Circuit. The


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v email:-mauritronedial.pipex.com signal at the collector of Q862 is connected to the A Z Axis Gate Circuit to control CRT blanking and to generate the + A GATE signal. The signal at the collector of Q864 is connected to the emitter of the Sweep Disconnect Amplifier stage (Q1024) in the A Sweep Generator Circuit to initiate A Sweep generation.

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