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556: Difference between revisions
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The triggering in the 556 is done using [[tunnel diodes]] | The triggering in the 556 is done using [[tunnel diodes]] | ||
and the trigger circuit sits on its own small PC board | and the trigger circuit sits on its own small PC board | ||
just behind the trigger source selection switch. | just behind the trigger source selection switch. | ||
A rack-mount version, the RM556 also exists. | A rack-mount version, the RM556 also exists. | ||