National Union Type 30

NOS w/ Original Box

AUDIO VACUUM TUBE

AMPLIFIER TYPE TUBE

VINTAGE STOCK

Coke Bottle Shape

Silver Plate

Bottom Foil-D Getter

Engraved Base

MADE IN USA

DATE CODE: K

TESTED on HICKOK TV-7

Results: 42

Minimum: 23

Combined Shipping Available!  Buy any amount of Tubes in USA and pay just shipping for one! International buyers combined shipping 0-8 oz package $16  and  8-24 Oz - $26

All Tubes Tested on a Calibrated Hickok TV7 or Sencore TC136