513: Difference between revisions
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The next scopes to use distributed amplifiers were | The next scopes to use distributed amplifiers were | ||
the [[517]] in 1951 and then the [[541]] and [[545]] in 1955. | the [[517]] in 1951 and then the [[541]] and [[545]] in 1955. | ||
The initial announcement in 1949 (link below) listed the 513 at $1695, weighing 60 pounds, | |||
with a low frequency cutoff of 5 Hz. As delivered to customers in 1950, | |||
the 513 weighed an extra 15 pounds , but had response to DC and cost a bit less: $1650 with the delay line | |||
or $1600 without. | |||
The input impedance is 1 Megohm in parallel with 40pF. | The input impedance is 1 Megohm in parallel with 40pF. | ||