If you need the data exactly in text form, as you wrote above - i think it is better to make an email enquiry: export@oktavatula.com (it's an "export" mailbox, so you can write to it in english)
If i understood your request correctly: dB is labelled top left, hertz is labelled bottom right. It s 'дб' and 'гц' handwritten. Accordingly, 0dB in this diagram is the lowest limiting line.
By the way, i used to live not far from the Oktava factory. @_jayrope, if you will need it, i can help you to buy their microphones from the manufacturer, including those that are no longer in production.
@_jayrope the russian-language site provides diagrams in graphical form for the exact models: #^https://oktavamicrophones.ru/mk-012
And there's a link to the techspec there too.
If you need the data exactly in text form, as you wrote above - i think it is better to make an email enquiry: export@oktavatula.com (it's an "export" mailbox, so you can write to it in english)
If i understood your request correctly: dB is labelled top left, hertz is labelled bottom right. It s 'дб' and 'гц' handwritten. Accordingly, 0dB in this diagram is the lowest limiting line.
By the way, i used to live not far from the Oktava factory. @_jayrope, if you will need it, i can help you to buy their microphones from the manufacturer, including those that are no longer in production.