D: Difference between revisions

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manuals=
manuals=
* [http://w140.com/mmm/tek-d.pdf Tektronix Type D Manual (PDF)]
* [http://w140.com/mmm/tek-d.pdf Tektronix Type D Manual (PDF)]
* [http://w140.com/tek_fcp/tek_type_d_factory_cal_proc.pdf Cal procedure]
<!-- * [http://w140.com/tek_fcp/tek_type_d_factory_cal_proc.pdf Cal procedure] -->
* [http://bama.edebris.com/manuals/tek/d/ Type D manual @ BAMA]
* [http://bama.edebris.com/manuals/tek/d/ Type D manual @ BAMA]
* [[Media:070-228.pdf|Tektronix Type D Manual (PDF, OCR, bad-OCR)]]
* [[Media:tek_type_d_fcp.pdf|Tektronix Type D Factory Calibration Procedure (PDF, OCR)]]
}}
}}


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six tubes, on a shock-mounted subchassis to avoid microphonics.
six tubes, on a shock-mounted subchassis to avoid microphonics.


Type D was [[introduced in 1954|introduced]] with the [[531]] and [[535]] in [[introduced in 1954|1954]] as Type 53D,
Type D was [[introduced in 1954|introduced]] with the [[531]] and [[535]] in [[introduced in 1954|1954]] as Type 53D.
was briefly renamed Type 53D/54D in 1955 with the introduction of the [[541]] and [[545]], then quickly renamed Type 53/54D,
It was briefly renamed Type 53D/54D in 1955 with the introduction of the [[541]] and [[545]],
then shortened to Type D in 1959 with the introduction of the 5xxA scopes. Its last year was 1968, having been superseded  
and then quickly renamed Type 53/54D.
by the constant-bandwidth model [[1A6]].
Its name was then shortened to Type D in 1959 with the introduction of the 5xxA scopes.
Its last year was 1968, having been superseded by the constant-bandwidth model [[1A6]].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.

Revision as of 15:56, 14 October 2018

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The Tektronix Type D is a differential amplifier plug-in for 500-series scopes.

It has high gain, and the bandwidth depends on the gain, ranging from 2 MHz at 50 mV/div and up, to 300 kHz at 1 mV/div.

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.

Type D was introduced with the 531 and 535 in 1954 as Type 53D. It was briefly renamed Type 53D/54D in 1955 with the introduction of the 541 and 545, and then quickly renamed Type 53/54D. Its name was then shortened to Type D in 1959 with the introduction of the 5xxA scopes. Its last year was 1968, having been superseded by the constant-bandwidth model 1A6.

K, L, and T are tied for longest production life, at 16 years. B, D, and G are next at 15 years.

Lavoie Laboratories produced an unauthorized clone, the Lavoie LA-265-D.

Internals

Some production runs used a pair of 5814 tubes at the input while others used 12AU7's. These two tube types have different heater currents, and because the heaters are series-wired, you cannot switch from one type to the other without circuit modification.

Specifications

please add

Pictures