6H6GT - National Union - Matched Pair

Two pairs are available.  Choose qty 1 to receive one pair.

Test Results on Jackson 648P:

105%

108%

106%

110%

Bottom line

• 🇺🇸 American-made National Union 6H6GT
• 🕰 1940s-era dual diode tubes
• 🧱 Built like tanks