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The Tektronix 513 is a single-channel monolithic oscilloscope with 18MHz bandwidth. | The Tektronix 513 is a single-channel monolithic oscilloscope with 18MHz bandwidth. | ||
It was announced in 1949 and [[introduced in 1950]]. | It was announced in 1949 and [[introduced in 1950]]. It used a [[5XP]] CRT initially, | ||
and then switched to a Tek-made CRT. | |||
It is the first Tektronix oscilloscope to contain a [[distributed amplifier]]. And | It is the first Tektronix oscilloscope to contain a [[distributed amplifier]]. And | ||
the first Tek scope to contain a [[delay line]] for the vertical signal, | the first Tek scope to contain a [[delay line]] for the vertical signal, |