1461: Difference between revisions

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{{Instrument Sidebar
|class=Audio/Video
|manufacturer=Tektronix
|series=
|model=1461
|summary=Test signal inserter/deleter
|image=1461 2.jpg
|caption=Tektronix 1461
|introduced=1975
|discontinued=(?)
|manuals=
* [[Media:070-1929-00.pdf|Tektronix 1461 Manual]]
* [[Media:070-1929-00.pdf|Tektronix 1461 Manual]]
}}
The '''Tektronix 1461''' is an Insertion Test Signal Generator Deleter / Inserter for 625/50 PAL television systems. It is capable of inserting either or both of two internally generated insertion test signals, [[wikipedia:European Broadcasting Union|EBU]] Line 17 and EBU Line 330, that can be individually programmed to any line within the vertical interval.
The EBU line 17 insertion test signal consists of a 2T bar, 2T pulse, 20T modulated pulse, and five-step stair case.  The EBU line 330 insertion test signal consists of a 2T bar, 2T pulse, and five-step modulated staircase.
Instruments with Option 1 (Source Identification Code Generator) can additionally delete a Line 16 test signal and/or replace it with a SID signal.
In the event of power failure, actuation of a remote bypass switch, or removal of the 1461 from the rack, a relay switch in the interface will re-route the program signal, maintaining program line continuity with unchanged signal delay.
{{MissingSpecs}}
==Links==
{{Documents|Link=1461}}
{{PatentLinks|1461}}
==Pictures==
<gallery>
1461 1.jpg
1461 2.jpg
EBU line 17 test signal.jpg  | EBU line 17 test signal
EBU line 330 test signal.jpg | EBU line 330 test signal
</gallery>
{{BetterPics}}
==Components==
{{Parts|1461}}


[[Category:Audio and video test equipment]]
[[Category:Audio and video test equipment]]

Latest revision as of 01:17, 15 July 2024

Tektronix 1461
Test signal inserter/deleter
Tektronix 1461

Produced from 1975 to (?)

Manuals
(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Tektronix 1461 is an Insertion Test Signal Generator Deleter / Inserter for 625/50 PAL television systems. It is capable of inserting either or both of two internally generated insertion test signals, EBU Line 17 and EBU Line 330, that can be individually programmed to any line within the vertical interval.

The EBU line 17 insertion test signal consists of a 2T bar, 2T pulse, 20T modulated pulse, and five-step stair case. The EBU line 330 insertion test signal consists of a 2T bar, 2T pulse, and five-step modulated staircase.

Instruments with Option 1 (Source Identification Code Generator) can additionally delete a Line 16 test signal and/or replace it with a SID signal. In the event of power failure, actuation of a remote bypass switch, or removal of the 1461 from the rack, a relay switch in the interface will re-route the program signal, maintaining program line continuity with unchanged signal delay.

Key Specifications

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Links

Documents Referencing 1461

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Pictures

Better pictures needed - please contribute

Components

Some Parts Used in the 1461

Part Part Number(s) Class Description Used in
155-0022-00 155-0022-00 155-0022-01 Monolithic integrated circuit analog multiplexer 147 148 149 335 468 1430 1441 1461 1900 1910 2220 2221 2230 5223 5403 5440 5441 5443 5444 5A38 7313 7403N 7503 7504 7514 7603 AN/USM-281C 7613 7623 7623A 7633 7704 R7704 7704A 7834 7844 7854 R7912 7912AD 7912HB 7904 R7903 7904A 7934 7A12 7A18 7A18A 7A18N 7B52 7B53N 7D10 7D11 7D12 NT-7000 P7001
155-0035-00 155-0035-00 155-0116-00 Monolithic integrated circuit quad op-amp 3110 3S7 3T7 492 492A 492AP 492P 494 494P 496 496P 4010 4011 4012 4013 7L5 7L12 7L13 7L14 7L18 7S11 7T11 7S12 S-6 1461 4602 P7001 613 653