Retro-Technika.com
English
English
Türkçe
Hrvatski
Slovenščina
Polski
ພາສາລາວ
Deutsch
Lëtzebuergesch
Español
Português
Čeština
Oscilloscope `` OKR-2 ''.
Instruments for adjusting and controlling the PTA.
Oscilloscope `` OKR-2 '' has been produced since 1937. The oscilloscope is designed for visual observation of various low frequency AC signals.