Telequipment D56: Difference between revisions

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(changed bandwidth to 15 MHz per the catalog description)
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|series=
|series=
|model=D56
|model=D56
|summary=10 MHz 2-ch scope
|summary=15 MHz 2-ch scope
|image=01_TQD56_Front 20240212.jpg
|image=01_TQD56_Front 20240212.jpg
|caption=Telequipment D56
|caption=Telequipment D56
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* [[Media:Telequipment d56 description from 1968 catalog.pdf|D56 Description in 1968 Catalog]]
* [[Media:Telequipment d56 description from 1968 catalog.pdf|D56 Description in 1968 Catalog]]
}}
}}
The '''Telequipment D56''' is a 10 MHz dual-channel dual beam oscilloscope
The '''Telequipment D56''' is a 15 MHz dual-channel dual beam oscilloscope
produced in the late 1960s.
produced in the late 1960s.
It uses a mix of tube and solid-state circuitry.
In the absence of a D56 manual, the closest manual is that of the [[Telequipment_D55|D55A]], which is an all-tube scope from 1963.


==Specifications==
==Specifications==
* Frequency Range between DC and 10 MHz (-3 dB).
* Frequency Range between DC and 15 MHz (-3 dB).
* Vertical Sensitivity between 10 mV/div to 50 V/div in 1-2-5 steps and including a 10x multiplier switch.
* Vertical Sensitivity between 10 mV/div to 50 V/div in 1-2-5 steps and including a 10x multiplier switch.
* Rise Time in the area of 23 ns or more.
* Rise Time in the area of 23 ns or more.
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* Mains 90 - 240 VAC, 50 Hz, ca 275 VA.
* Mains 90 - 240 VAC, 50 Hz, ca 275 VA.
* Dimensions 24 cm x 43 cm x 48 cm.
* Dimensions 24 cm x 43 cm x 48 cm.
* Weight about 50 lbs.
* Weight 59 lbs.
* brief spec to be continued
* ...


==Manual==
==Differences between D56 and D55A==
* Manual is not available. The closest manual available is from the D55A with only tubes.
* Mixed tubes and transistors.
 
==Difference between D56 and D55A==
The main differences between D56 and D55A are the following:
The main differences between D56 and D55A are the following:
* 10 MHz compared to 15 MHz Bandwidth.
* Both have 15 MHz Bandwidth.
* 10 mV/div compared to 100 mV/div Sensitivity.
* 10 mV/div compared to 100 mV/div Sensitivity.
* Circuit Boards are used more consistently apart from the Vertical Amplifiers.
* Circuit Boards are used more consistently apart from the Vertical Amplifiers.