For sale is one Matched Pair 2x NOS Western Electric 420A/5755 black plates tubes - Tests NOS. The tubes test very strong at NEW level and perfectly balanced. The tubes are unused - all came from military base from the same location. Test Results in millimho (min: 0.8; new: 1.5) - Amplitrex AT-1000 digital tube tester
Tube 1: 1.6/1.6
Tube 2: 1.6/1.6 Singles, Quads, Trios are also available.
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