Я4С-90: Difference between revisions

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{{Plugin Sidebar 2 |
{{Plugin Sidebar
title=Я4С-90 |
|manufacturer=Vilnius Research
summary=Dual-trace vertical amplifier |
|series=Soviet 7000-series clones
image=Я4С-90_front.jpg |  
|type=Я4С-90  
caption=Я4С-90 front panel |
|summary=Dual-trace vertical amplifier  
series=[[Soviet 7000-series clones]]|
|image=Я4С-90_front.jpg  
introduced=(?) |
|caption=Я4С-90 front panel  
discontinued=(?) |
|introduced=(?)  
manuals=
|discontinued=(?)  
* [http://www.04kn009.de/C1-122-Verstaerker_R4C-90.pdf  Я4С-90 amplifier manual]
|designers=
* [https://martinjonestechnology.files.wordpress.com/2017/02/r4c-90-technische-beschreibung-und-betriebsanleitung.pdf Я4С-90 Technical description and instruction manual (in German)]
|manuals=
* [https://martinjonestechnology.files.wordpress.com/2017/02/r4c-90-kennkarte.pdf Я4С-90 Calibration certificate (in German)]
<!-- * [http://www.04kn009.de/C1-122-Verstaerker_R4C-90.pdf  Я4С-90 amplifier manual] -->
* [[Media:C1-122-Verstaerker R4C-90.pdf|Я4С-90 amplifier manual]]
<!-- * [https://martinjonestechnology.files.wordpress.com/2017/02/r4c-90-technische-beschreibung-und-betriebsanleitung.pdf Я4С-90 Technical description and instruction manual (in German)] -->
* [[Media:R4c-90-technische-beschreibung-und-betriebsanleitung.pdf|Я4С-90 Technical description and instruction manual (in German)]]
 
<!-- * [https://martinjonestechnology.files.wordpress.com/2017/02/r4c-90-kennkarte.pdf Я4С-90 Calibration certificate (in German)] -->
* [[Media:R4c-90-kennkarte.pdf|Я4С-90 Calibration certificate (in German)]]
}}
}}
The '''Я4С-90''' is a dual-trace vertical amplifier plug-in for [[Soviet 7000-series clones]]. It is roughly analogous to the Tek [[7A18]].
The '''Я4С-90''' is a dual-trace vertical amplifier plug-in for [[Soviet 7000-series clones]]. It is roughly analogous to the Tek [[7A18]].


Line 45: Line 50:
Я4С-90 left internal.jpg
Я4С-90 left internal.jpg
Я4С-90 front2.jpg
Я4С-90 front2.jpg
Я4С-90_flying_components.jpg | Components are mounted "flying" over the board
</gallery>
==Comparison 7A18 vs Я4С-90 attenuators==
<gallery>
Я4С-90_Atten_Top.jpg|Attenuator top part with shielding
Я4С-90_Atten_drum.jpg|Attenuator drum assembly
Я4С-90_Atten_bot_01.jpg|Bottom view with removed outer shieldings
Я4С-90_Atten_bot_02.jpg|Bottom view with removed shielding over 1:100 attenuator
Я4С-90_Atten_bot_03.jpg|Bottom view with removed attenuators
Я4С-90_Atten_compare_01.jpg|Comparison between Tektronix 7A18 and Я4С-90 attenuator assembly
Я4С-90_Atten_compare_02.jpg|Comparison between Tektronix 7A18 and Я4С-90 attenuator module (1:10)
Я4С-90_Atten_compare_04.jpg|Side by side comparison of a Tektronix and a Я4С-90 attenuator
Я4С-90_Atten_compare_03.jpg|Tektronix attenuator module mounted in a Я4С-90 attenuator assembly
</gallery>
</gallery>


Latest revision as of 06:36, 11 February 2023

Vilnius Research Я4С-90
Dual-trace vertical amplifier
Я4С-90 front panel

Compatible with Soviet 7000-series clones

Produced from (?) to (?)

Manuals
Manuals – Specifications – Links – Pictures

The Я4С-90 is a dual-trace vertical amplifier plug-in for Soviet 7000-series clones. It is roughly analogous to the Tek 7A18.

Significant differences to the 7A18 include:

  • has a bandwidth limiting switch like the 7A26

The input connectors are СР50-73 type.

The example in the photos is labelled in German. A version labelled in Russian also exists.

Key Specifications

V/div 5mV/div to 5V/div in 1-2-5 sequence
Vertical modes I, chop, add, alt, II

Links

Pictures

  • Front

    Front

  • Three-quarter view

    Three-quarter view

  • Rear

    Rear

  • Я4С-90 and 7A26 Front

    Я4С-90 and 7A26 Front

  • Я4С-90 and 7A26 Rear

    Я4С-90 and 7A26 Rear

  • Я4С-90 and 7A26 Threequarter

    Я4С-90 and 7A26 Threequarter

  • Seal on rear of plugin locking side panel

    Seal on rear of plugin locking side panel

  • Vertical amplifier plug-in

    Vertical amplifier plug-in

  • Components are mounted "flying" over the board

    Components are mounted "flying" over the board

Comparison 7A18 vs Я4С-90 attenuators

  • Attenuator top part with shielding

    Attenuator top part with shielding

  • Attenuator drum assembly

    Attenuator drum assembly

  • Bottom view with removed outer shieldings

    Bottom view with removed outer shieldings

  • Bottom view with removed shielding over 1:100 attenuator

    Bottom view with removed shielding over 1:100 attenuator

  • Bottom view with removed attenuators

    Bottom view with removed attenuators

  • Comparison between Tektronix 7A18 and Я4С-90 attenuator assembly

    Comparison between Tektronix 7A18 and Я4С-90 attenuator assembly

  • Comparison between Tektronix 7A18 and Я4С-90 attenuator module (1:10)

    Comparison between Tektronix 7A18 and Я4С-90 attenuator module (1:10)

  • Side by side comparison of a Tektronix and a Я4С-90 attenuator

    Side by side comparison of a Tektronix and a Я4С-90 attenuator

  • Tektronix attenuator module mounted in a Я4С-90 attenuator assembly

    Tektronix attenuator module mounted in a Я4С-90 attenuator assembly

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