Original used working
oscilloscope S1-90  is used 
in the development and configuration of circuits.

All technical characteristics of the S1-90 
oscilloscope meet modern requirements 
for devices of this class. Using the S1-90 oscilloscope, 
it is possible to test and repair a variety of instrumentation devices. 
The S1-90 oscilloscope quickly solves the problem of fault detection. 
The S1-90 oscilloscope has easy navigation. 
The presence of many functions in the S1-90 oscilloscope 
did not complicate the control. 
Therefore, working with the S1-90 oscilloscope 
is simple and convenient. 
The S1-90 oscilloscope is also characterized 
by low accuracy and high sensitivity.

Oscilloscope S1-90 is designed for visual observation of 
the shape of electrical signals and measurement of their parameters. 
Oscilloscope S1-90 - a portable oscilloscope 
is made in a metal case and has dimensions: 
100X190X300, screen size 40X60, weight 3.5 kg. 
The S1-90 oscilloscope has one channel, a bandwidth of 10 MHz.

SPECIFICATIONS:

Main characteristics of the S1-90 oscilloscope
Number of rays 1
Bandwidth 0-10 MHz
Rise time 35 ns
Deviation coefficient 10 mV/div. – 5 V/div
Error 5% with 1:10 divider: 8%
Settling time 120 ns
Overshoot at the top 10%
Unevenness 3%
Active resistance 1± 0.05 1± 0.05 1± 0.05 MOhm
Maximum input voltage direct input 30 V
Closed entrance
250 V
with 1:10 divider: 300 V
Working part of the screen 40 X 60 mm (8 X 10 div.)
Operating temperature range from 10 to 35° C
Relative humidity at 25°C 80%
Power supply 220±22 V, 50±0.5 Hz
Power consumption 32 V*A
Overall dimensions 100 X 190 X 300 mm
Weight 3.5 kg
Horizontal deviation of the S1-90 oscilloscope
Time base 1.0 µs/div.-50ms/div.
Accuracy 5%
Sweep error 0.1 µs/div. 8%
Used. 
There are cracks on the plastic - 
they do not affect the work.

There are traces of time -
I sell in the condition as it is!:
For film studio, for the museum, 
for restoration, for the collection.
A condition on a REAL photo.
Look at the ACTUAL photos! 
You receive what you see.