oscarhuang
Well-known member
- Joined
- May 22, 2020
- Messages
- 159
Yes. Those are not real M149.It looks like 5840 or 6S6B. They polished the logo, which is very similar to the way made in China
ОТК in Russian means ‘department of technical control’ and deals with consumer parts and goods, and not limited to tubes. A lot of different things could be labeled with OTK, which by no means says about part name, or designation. Basically, it means ‘passed QC’.OTK is designation for russian military spec tube i believe.
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