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42 National Union used/tests like new 1930's (35ma)

42 National Union used/tests like new 1930's (35ma)

By Tube World Express

$ 14.99

42 National Union used/tests like new 1930's small amount of white oxide dust inside tube

35ma

Gm=2550

 

Good used Ma range 25-30ma

Good used Gm range 2000-2300

 

See more: vacuum tube
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