Branded TriadAmperex

Pinched Tip

Base
Black
Code On Tube
f32 B4G
Country
Great Britain
Factory Code
B - Mullard, Blackburn
Glass Color
Clear Glass
Mica
Double
Permanentid
2bwtssvk1a
Pin Color
Silver
Plate Color
Matte Gray
Plate Look
Sawtooth
Tip Shape
Pinched Tip
Year
1964

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