Auction is for one matched pair (2pcs) of rare NOS Siemens QE05/40 (6146B) power tubes. (brown backelite base)

They are branded Siemens and they come in original Siemens boxes + wrapped in paper. 

Every pair is carefully selected for plate current on calibrated METRIX U61B tester!

These are real NOS made by Siemens and they outperform any current production 6146B in every way!

Free registered shipping worldwide.