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NOS Vacuum Tubes for Sale | Tubes Unlimited
#1 ONLINE Source for NOS Vacuum Tubes
1950s and 1960's GE 5U4GB. NOS in original boxes. 5U4GB is uprated to 275ma
General Electric made GZ34 are rock solid USA made construction and sound excellent. These GE versions of the 5AR4=GZ34=CV1377 have copper lined anodes and are extremely durable.
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