STC GXU1 Vacuum Tube Valve 3B28 CV1835 - Used Not Tested

Unit came in original box, but we are selling as used, since there is no history available on this tube and no testing other than filament continuity was performed. Some discoloration for glass surface inside (smokey). Unit showed shelf wear consistent with prolonged storage - some discoloration oxidation of metal surfaces. Please see photos.

We have many tubes available. If you are interested in something specific, please inquire.

WE WILL COMBINE SHIPPING ON MULTIPLE ITEM ORDERS. When purchasing multiple items, please let us know before making payment so that we can adjust the shipping amount on the invoice.