4CX800A/GU74B Tube, SVETLANA TRANSMITTING TETRODE
4CX800A/GU-74B NOS Tubes.
SVETLANA POWER TRANSMITTING TETRODE
Svetlana 4CX800A is manufactured in the "Svetlana Electron Devices"
(SED) factory in St. Petersburg, Russia. Offered tubes (Soviet marks as
GU-74B) are made in the USSR at 1980-92 on this Svetlana factory, are
full analogue and have the best parameters rather modern Svetlana
4CX800A tubes. These military grade tubes have a chromium plating,
steadier than brilliant nickel plated of modern tubes. Have received
from a old warehouses.Tubes have been on shelves or in storage and over time may have developed some dents. This minor dents from shelf life does not detract from an item being identified as NOS.
See Svetlana Technical data:
This sale is for TWO (2) Matched GU-74B/4CX800a Svetlana tubes.