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NOS Vacuum Tubes for Sale | Tubes Unlimited
#1 ONLINE Source for NOS Vacuum Tubes
select for balanced sections
Balanced sections ($10.00)
Precision state-of-the-art matching for pairs, quads etc for all tubes
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1950s and 1960's GE 5U4GB. NOS in original boxes. 5U4GB is uprated to 275ma
5993=Premium 6X4 with a different pinout
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