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53G has five tubes
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the Type G does not contain an internal precision variable voltage source. | the Type G does not contain an internal precision variable voltage source. | ||
It is for measuring the difference between two externally applied input signals. | It is for measuring the difference between two externally applied input signals. | ||
Its maximum sensitivity is 50 mV/div. It has seven tubes. | Its maximum sensitivity is 50 mV/div. It has seven tubes. (The early, slower 53G has five tubes.) | ||
Its name changed twice. Type 53G was [[introduced in 1955|introduced in March 1955]] along with the | Its name changed twice. Type 53G was [[introduced in 1955|introduced in March 1955]] along with the | ||