Available for immediate purchase is a nicely matched pair of SYLVANIA 6BQ5/EL84 NOS/NIB Black Plate tubes, made in USA.

These have matching production codes (AEN). There is some minor box wear of the tube lettering and a bit of shelf wear of the boxes.

These were tested on my calibrated TV-7 Mutual Conductance Tube Tester, with very strong, close readings of 95 and 87 where 50 is minimum good.

These tubes will be well packed to ensure a safe arrival. 

Tracking is included in the shipping cost, however, tracked shipping is not available to all countries.

I am happy to combine shipping costs where possible.