In this video we compare L3Harris Supergain tubes to a few L3Harris standard gain. All spec'd respectively. All PVS14's. All white phosphor. These tubes are very interesting and we were surprised by the results.

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0:00 Intro
1:34 Supergain Tubes
4:32 Test Location 1
11:06 Test Location 2
15:09 Comparison
15:37 Outro