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6J5GT/G

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ID = 49942
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  LOCKED OFF PART (CODE 9) - see in Notes   Universal 
Identical to 6J5GT/G = 6J5GT
First Source (s)
14.Nov.1941 : Electron Tube Registration List
Predecessor Tubes 6J5GT  

Base Octal (Int.Octal, IO) K8A, USA 1935
Description

Some receiver tubes with Octal-bases are designated either with no suffix or with the suffixes "G" or "GT". Tubes labelled “GT/G” are actually type “GT”.

The suffix “GT/G” on the tube (or schematic) is intended to indicate that the tube also serves as a replacement for the older and larger type “G” tubes (“GT” type tubes can always replace the same “G” types).

There are no significant electrical differences between any of the glass tube suffixes, or with metal tubes (Metal tubes have a built-in shield, of course).

Since “GT” and “G” are electrically equivalent, we have blocked “GT/G” labelled tubes for use in devices (Otherwise, we would need to include all other equivalent tube types on the model page, such as 12AX7/ECC83), and because the same tube would otherwise appear twice (in statistics, etc.). See details in this forum thread.

 
Text in other languages (may differ)

6j5gtg_so.png 6J5GT/G
Anonymous 10 Collector

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Just Qvigstad
6j5g_6j5gt_brimar_radio_valve_manual_1947_48_p1_data1_pin~~2.png
6J5GT/G: Brimar Valve Manual 1947-8
Adrian Riesen

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Collection of

 
6j5gt_g.jpg

6J5GT/G
 

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