299
edits
D: Difference between revisions
Jump to navigation
Jump to search
D was superseded first by W, then 1A6.
No edit summary |
Vintage dave (talk | contribs) (D was superseded first by W, then 1A6.) |
||
| Line 17: | Line 17: | ||
The '''Tektronix Type D''' is a differential amplifier plug-in for [[500-series scopes]]. | The '''Tektronix Type D''' is a differential amplifier plug-in for [[500-series scopes]]. | ||
Type D was the first high-gain plugin for the 500-series. | |||
The bandwidth depends on the gain, ranging from 2 MHz at 50 mV/div to 300 kHz at 1 mV/div. | |||
There are two axes of sensitivity setting: a decade attenuator in front of a gain switch. | |||
This scheme would be reprised in Type [[W]]. | |||
It displays the difference between two input signals, with a common-mode rejection ratio of 10,000. It has | It displays the difference between two input signals, with a common-mode rejection ratio of 10,000. It has | ||
six tubes, on a shock-mounted subchassis to avoid microphonics. | six tubes, on a shock-mounted subchassis to avoid microphonics. | ||
Type D was | Along with Types [[A]], [[B]], and [[C]], Type D was introduced with the [[531]] and [[535]] in [[introduced in 1954|1954]]. | ||
It was briefly renamed | |||
and then quickly | At the time it was called Type 53D. | ||
It was briefly renamed 53D/54D in 1955 with the introduction of the [[541]] and [[545]], | |||
Its | and then quickly changed to 53/54D, shortening to just "D" in 1959 with the introduction of the 5xxA scopes. | ||
Its final year in the catalog was 1968; it had been superseded by Type [[W]] and then [[1A6]]. | |||
[[K]], [[L]], and [[T]] are tied for longest production life, at 16 years. | [[K]], [[L]], and [[T]] are tied for longest production life, at 16 years. | ||