Telequipment D56
The Telequipment D56 is a 10 MHz dual-channel, dual beam oscilloscope.
Key Specifications
- please add
Spec
- This unit is manufactured late (Nov-Dec) 1966.
- brief spec to be filled
Manual
- Manual not available. The closest manual available is from the D55A.
- Mixed tubes and transistors.
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.
- Circuit Boards are used more consistently apart from the Vertical Amplifiers.
- Mixed Transistors and Tubes.
Tubes
- 35 tubes + CRT (same CRT as in the D55A).
- Vertical Amplifiers (each): 2xEF184, 2xECC88, 2xE810F.
- Horizontal Amplifiers (each): V101: ECF80, V102 ECF80, V103: ECC88, V104: ECC88, V105: EB91, V106: ECF80, V107: ECF80, V108: ECF80, V109: ECF80.
- Time Delay: V302: ECC88, V303: ECC88.
- Trace Blanking: V304: ECC88, V305: ECC88, V403: EF184.
- Regulators Board PC23: V301: ECC88.
- Regulators Board PC24: V401: EL86, V402: ECF80.
- CRT: 5" flat-face, double gun, P1 phosphor. 1374K G.E.C.
Transistors
- 9 germanium PNP transistors.
- Motorola 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 ACY22, TO-5, Germanium, PNP. 225mW, 2 pcs.
Pictures
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D56 Front View
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D56 trace
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D56 Rear View
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D56 Vertical Amplifiers Side View
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D56 Vertical Amplifiers Side View
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D56 Rear View with Transformers and Regulators
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D56 Regulators
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D56 Timebase Side View
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D56 Timebase A top
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D56 Trace Blanking Board PC27
