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Old 16th January 2007, 09:17 AM   #1
nafunga is offline nafunga  United Kingdom
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Default 6BL7 rA in PP

Can anyone help please with the optimum transformer primary impedance for double triode 6BL7 in PP, on 300v HT?

Thanks.
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Old 13th June 2007, 09:06 PM   #2
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24k for one tube 4W, 12k for two tubes 8W, 8k for three tubes 12W etc. etc......
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