Passendes Paar Raytheon #45 gravierte Basis Vakuumröhren
158,31 €
Rare pair of early Raytheon #45 tubes, featuring engraved bases and inverted cup getters. These test in the 50-60% range for emission, but are a perfect Gm match, and have a plate current difference of just over 3mA as tested on the Amplitrex AT1000.
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