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* Stage 5: differential, [[6AG7]] pentodes | * Stage 5: differential, [[6AG7]] pentodes | ||
The 512 has two inputs, "A" and "B", each having its own [[ | The 512 has two inputs, "A" and "B", each having its own [[UHF connector]]. | ||
The scope can be used with a single input or it can used in "A-B" mode, where the displayed | The scope can be used with a single input or it can used in "A-B" mode, where the displayed | ||
signal is the difference between the voltage at the A input and the voltage at the B input. | signal is the difference between the voltage at the A input and the voltage at the B input. |