Having a little trouble identifying these 6922 gold pin vacuum tubes – they have license plates like Tungsram and four top creases like Amperex/Siemens/Brimar – Amplitrex tested 96/100% 82/90% Gm. 100% represents what you would expect from a NOS tube on our Amplitrex and 65% is considered too low to use. Please feel free to return items that do not meet your needs within the 30 day period, we only want satisfied customers! Thanks and God bless! “But seek first the kingdom of God and his righteousness, and all these things will be added to you.” Matthew 6:33
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