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2 National Union Single Plate 45 Vintage Vacuum Tube Test Very Strong




Item History & Price

Information:
Reference Number: Avaluer:6880488Model: 45
Brand: National UnionType: Vacuum Tube
Original Description:
For your consideration are two National Union 45 single plate vacuum tubes.
Both of these tubes have been tested on a recently calibrated Hickok 5399C where the minimum reading for this tube is 1170gm and the reading for a new tube is 1800gm.  
These tubes test as new with the following results.
2350gm & 2200gm





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