Telequipment D56: Difference between revisions

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Telequipment D56 (view source)

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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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|designers=
|designers=
|manuals=
|manuals=
* Manual needed [[Category:Manual needed]]
* [[Media:Telequipment_D56_manual_ocr.pdf|Telequipment D56 Manual]]
* [[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.


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.


{{MissingSpecs}}
{{BeginSpecs}}
==Spec==
{{Spec | Bandwidth | DC to 15 MHz (-3 dB) }}
* This unit is manufactured late (Nov-Dec) 1966.
{{Spec | Rise time | 23 ns }}
* brief spec to be filled
{{Spec | Deflection | 10 mV/div to 50 V/div, 1–2–5, and ×10 magnifier }}
{{Spec | Input Impedance | 1 MΩ // 40 pF }}
{{Spec | Sweep Rate | 500 ns/div to 5 s/div, 1–2–5, and ×10 magnifier }}
{{Spec | Features | 10 MHz time calibrator (intensity modulated marker) on CH11 using Timebase A }}
{{Spec | Power | 90 - 240 VAC, 50 Hz, ~275 VA }}
{{Spec | Dimensions | 24 cm × 43 cm × 48 cm }}
{{Spec | Weight | 26.7 kg (59 lb) }}
{{EndSpecs}}


==Manual==
==Internals==
* Manual not available. The closest manual available is from the D55A.
===Differences between D56 and D55A===
* Mixed tubes and transistors.
The main differences between D56 and D55A are the following:
 
* Both have 15 MHz Bandwidth. However, at 10 mV/div sensitivity, the bandwidth is limited to 500 kHz.
==Difference D56 and D55A==
* The main differences between D56 and D55A are the following:
* 10 MHz compared to 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.
* Mixed Transistors and Tubes.  
* Mixed transistors and tubes. Still many tubes, but adding transistors gives more possibilities.


==Tubes==
===Tubes===
* 35 tubes + CRT (same CRT as in the D55A).  
* 35 tubes + CRT (same CRT as in the D55A).  
* Vertical Amplifiers (each): 2xEF184, 2xECC88, 2xE810F.
* Vertical Amplifiers (each): 2×[[EF184]], 2×[[ECC88]], 2×[[E810F]].
* Horizontal Amplifiers (each): V101: ECF80, V102 ECF80, V103: ECC88, V104: ECC88, V105: EB91, V106: ECF80, V107: ECF80, V108: ECF80, V109: ECF80.
* Horizontal Amplifiers (each): V101: [[ECF80]], V102 [[ECF80]], V103: [[ECC88]], V104: [[ECC88]], V105: [[EAA91]], V106: [[ECF80]], V107: [[ECF80]], V108: [[ECF80]], V109: [[ECF80]].
* Time Delay: V302: ECC88, V303: ECC88.
* Time Delay: V302: [[ECC88]], V303: [[ECC88]].
* Trace Blanking: V304: ECC88, V305: ECC88, V403: EF184.
* Trace Blanking: V304: [[ECC88]], V305: [[ECC88]], V403: [[EF184]].
* Regulators Board PC23: V301: ECC88.
* Regulators Board ? PC23: V301: [[ECC88]].
* Regulators Board PC24: V401: EL86, V402: ECF80.
* Regulators Board PC24: V401: [[EL86]], V402: [[ECF80]].
* CRT: 5" flat-face, double gun, P1 phosphor. 1374K G.E.C.
* CRT: 5" flat-face, double gun, P1 phosphor. 1374K G.E.C.


==Transistors==
===Transistors===
* 9 germanium PNP transistors.  
* Nine germanium PNP transistors.  
* Motorola T-119, TO-92, germanium, PNP: TR251, TR252, A; TR101, TR102, B; TR101, TR102. 6 pcs. total.
* Motorola LB293, T-119, TO-92, germanium, PNP: TR251, TR252, A; TR101, TR102, B; TR101, TR102. 6 pcs. total.
* Newmarket 452, T0-3, germanium, PNP, 3A.
* Newmarket NKT452, TO-3, germanium, PNP, 3A. TR402.
* Newmarket ACY22, TO-5, Germanium, PNP. 225mW, 2 pcs.
* Newmarket ACY22, TO-5, Germanium, PNP. 225mW, TR401, TR403. 2 pcs.


==Pictures==
==Pictures==
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07_TQD56_Side_Vertical 20240212.jpg | D56 Vertical Amplifiers Side View
07_TQD56_Side_Vertical 20240212.jpg | D56 Vertical Amplifiers Side View
08_TQD56_Vertical_Amplifiers 20240212.jpg | D56 Vertical Amplifiers Side View
08_TQD56_Vertical_Amplifiers 20240212.jpg | D56 Vertical Amplifiers Side View
09_TQD56_Rear_regulators 20240212.jpg | D56 Rear View with Transformers and Regulators
09_TQD56_Rear_regulators 20240212.jpg | Rear View with Transformers and Regulators
10_TQD56_Rear_closeup 20240212.jpg | D56 Regulators  
10_TQD56_Rear_closeup 20240212.jpg | D56 Regulators  
11_TQD56_Side_Timebase 20240212.jpg | D56 Timebase Side View
11_TQD56_Side_Timebase 20240212.jpg | Timebase Side View
12_TQD56_Timebase_A 20240212.jpg | D56 Timebase A top
12_TQD56_Timebase_A 20240212.jpg | Timebase A top
13_TQD56_PC27_20240212.jpg | D56 Trace Blanking Board PC27
13_TQD56_PC27_20240212.jpg | Trace Blanking Board PC27
15_TQD56_Front_PC26 20240212.jpg | Timing Delay Transistors
16_TQD56_Motorola_T119 20240212.jpg | Trigger? Board Transistors
17_TQD56_Trimmer_A 20240212.jpg | Neutralization Trimmer, do not change
19_TQD56_Vertical 20240212.jpg | Vertical Amplifier Component Side
20_TQD56_PC25 20240212.jpg | Rear Board on Vertical Side
</gallery>
</gallery>
==Components==
{{Parts|Telequipment D56}}


[[Category:Telequipment]]
[[Category:Telequipment]]
[[Category:CRT based analog mixed tube and transistor scopes]]
[[Category:Tube scopes]]
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