Я4С-90: Difference between revisions

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* [http://www.04kn009.de/C1-122-Verstaerker_R4C-90.pdf  Я4С-90 amplifier manual]
<!-- * [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)]
* [https://martinjonestechnology.files.wordpress.com/2017/02/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)]
* [https://martinjonestechnology.files.wordpress.com/2017/02/r4c-90-kennkarte.pdf Я4С-90 Calibration certificate (in German)]

Revision as of 06:32, 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

Comparison 7A18 vs Я4С-90 attenuators