RARE 15-Watt Audio Triodes. 2 NOS RCA deForest 841 Vacuum Tubes. Hickok TV-7D/U tests read 48 and 48. The 841 is an audio / transmitting triode – a 10 uprated to 15 watts. The 841 is useable as a 10, 10Y, VT-25, VT-25A, 801 or even as a 50, if needed.
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