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647A: Difference between revisions
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The [[11B2A]] is similar to the [[11B2]] dual time base, but triggers up to 100 MHz. | The [[11B2A]] is similar to the [[11B2]] dual time base, but triggers up to 100 MHz. | ||
In addition, Tek introduced the [[10A1]] differential amplifier. | In addition, Tek introduced the [[10A1]] differential amplifier. | ||
It operates down to 1 mV/div sensitivity, and includes a comparison voltage mode with a calibrated DC offset | It operates down to 1 mV/div sensitivity, and includes a comparison voltage mode with a calibrated DC offset similar to that first offered in the [[W|type W]] plug-in. | ||
similar to that first offered in the [[W|type W]] plug-in. | |||
The maximum bandwidth of the 10A1 is 55 MHz for sensitivities of 5 mV/div and higher. | The maximum bandwidth of the 10A1 is 55 MHz for sensitivities of 5 mV/div and higher. | ||
In total, only 4 plug-ins were developed for the 647 series – the generic dual trace vertical, | In total, only 4 plug-ins were developed for the 647 series – the generic dual trace vertical, | ||
a differential vertical, and a single and a dual time base. | a differential vertical, and a single and a dual time base. | ||
Although it combined high performance with rugged reliability and compactness, | Although it combined high performance with rugged reliability and compactness, the 647 series was one of Tek’s “orphan” scope series, a result of when it was introduced. | ||
the 647 series was one of Tek’s “orphan” scope series, a result of when it was introduced. | By the time the 100 MHz 647A was announced, the majority of the R&D effort at Tek was devoted to the [[7000-series scopes|7000 series]], which introduced just two years later, in 1969. | ||
By the time the 100 MHz 647A was announced, | |||
the majority of the R&D effort at Tek was devoted to the [[7000-series scopes|7000 series]], | |||
which introduced just two years later, in 1969. | |||
The entry level 7000 series mainframe started with performance nearly the same as the top of the line 647A. | The entry level 7000 series mainframe started with performance nearly the same as the top of the line 647A. | ||
With on-screen scale factor read-out, and even more compact form factor, | With on-screen scale factor read-out, and even more compact form factor, 7000 would offer many advantages over any of Tek’s existing lines of scopes. | ||
7000 would offer many advantages over any of Tek’s existing lines of scopes. | When the work on developing plug-ins for 7000 series was ramping up, no additional plug-ins for any of the “legacy” plug-in scopes would be developed. | ||
When the work on developing plug-ins for 7000 series was ramping up, | |||
no additional plug-ins for any of the “legacy” plug-in scopes would be developed. | |||
For the 530/540/550 series which started over 20 years earlier, a large family of plug-ins were available. | For the 530/540/550 series which started over 20 years earlier, a large family of plug-ins were available. | ||
But for the orphan scopes which were introduced in the mid 1960s, the variety of plug-ins was very limited. | But for the orphan scopes which were introduced in the mid 1960s, the variety of plug-ins was very limited. | ||
The [[067-0544-00]] is a calibration plug-in for the 647A. | The [[067-0544-00]] is a calibration plug-in for the 647A. | ||
{{BeginSpecs}} | {{BeginSpecs}} | ||