The Я4С-105 is a cursor measurement plug-in for Soviet 7000-series clones. It is roughly related to the Tektronix 7D12.

Vilnius Research Я4С-105
Cursor measurement unit

Compatible with Soviet 7000-series clones

Produced from 1981 to (?)


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(All manuals in PDF format unless noted otherwise)

Key Specifications

Voltage measurements 15 mV to 40 V, ±1.5-3%
Time measurements 40 ns – 20 ms
Features semi-automatic cursor voltage and time measurements, with on-screen readout