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647: Difference between revisions
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resemble those that go in a 560-series scope, like the 3A3 and 3B2 plug-ins, but they are quite different | resemble those that go in a 560-series scope, like the 3A3 and 3B2 plug-ins, but they are quite different | ||
are not at all compatible. The 647A contains vertical and horizontal amplifiers, whereas in the 560-series, | are not at all compatible. The 647A contains vertical and horizontal amplifiers, whereas in the 560-series, | ||
the plug-ins drive the deflection plates directly. | the plug-ins drive the deflection plates directly. The 647A followed the Type 647, which is similar | ||
but has 50MHz bandwidth. | |||
Is it the only scope to use those plug-ins? It is unusual to see only one scope in what appears to be the beginning of a series. Was it discontinued because of lack of demand? What replaced it? | Is it the only scope to use those plug-ins? It is unusual to see only one scope in what appears to be the beginning of a series. Was it discontinued because of lack of demand? What replaced it? | ||