Do input and driver tubes have to be matched pairs?

Tubes Asylum

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I use a parallel single ended 300B amp, which uses two 5687 and two 6072 as driver and input tubes,respectively. Do these have to be matched pairs? Or could I use unmatched singles? TIA for the advice.
Jovy

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Topic - Do input and driver tubes have to be matched pairs? - Jovy 15:26:38 11/05/02 (2)

Re: Do input and driver tubes have to be matched pairs? - johnno 13:53:19 11/07/02 (1)

Thanks for the advice! (NT) - Jovy 14:47:54 11/07/02 (0)

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