GU-17 / ГУ-17 / QQE03/12 Beam power double tetrode Soviet Vacuum Tube 8pcs NEW 1980's TESTED

Tubes never used, old stock, made at Ulyanovsk Factory, Soviet USSR
Equivalent to the QQE03/12
date: 1970-80's
Lot of 8 tubes, TESTED

REAL PHOTO!

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