(!!!) (Recommended Single) ER-230=30 Raytheon 1930's used/like new (4.1ma and Gm=800)
$ 34.99
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ER-230=30 Raytheon 1930's used/like new
4.1ma
Gm=800
Tested on Amplitrex
NOS Ma = 3.1ma
NOS Gm = 800-900
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