1A4: Difference between revisions

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The signal path of each channel of the 1A4 is as follows.   
The signal path of each channel of the 1A4 is as follows.   
First the signal passes through the attenuators.   
First the signal passes through the attenuators.   
Then it is clamped by two diodes and applied to the the gate of a JFET source follower.   
Then it is clamped by two diodes and applied to the gate of a JFET source follower.   
The source of the source follower is the trigger pickoff point.   
The source of the source follower is the trigger pickoff point.   
From there the vertical signal path goes through an NPN emitter follower  
From there the vertical signal path goes through an NPN emitter follower  
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