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ID = 49728
Soviet Union
Brand: Common type USSR (SU) tube/semicond.
Tube type:  Numerals- and Symbols indicating tube   Indication 
Identical to ИН-7А

Base SPECIAL TUBEBASE in general

IN-7A (ИН-7A)~18mm displays with 8 symbols partially Russian Cyrillic : M, +, m, %, µ, -, К, П

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
30 x 44 x mm / 1.18 x 1.73 x inch
Weight 14 g / 0.49 oz
Information source -- Collector info (Sammler)   
ИН-7А: Collection Patrice ZEISSLOFF
Patrice Zeissloff

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ИН-7А: Russische Spezialröhren, 1985
Anonymous 15 Collector

Collection of a member from D

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