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OTL Asylum OTL, Output Transformerless Amplifier User Group. |
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OTL Asylum OTL, Output Transformerless Amplifier User Group. |
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In Reply to: optimum speaker impedance for existing OTL designs? posted by topogon on September 4, 2005 at 02:56:12:
Most Futtermans are happy with 50 ohm loads, as are Circlotron based OTLs. In general for a given number of output tubes a Circlotron based OTL will have about half the output impedance of a Futterman based design. Efficiency will still play a role, but developing power with a speaker that is over 30 ohms is not too hard. So if you can do 60 ohms I would go for it.If you decide to use 6336 tubes, make sure each individual tube section is seperately fuse protected!
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- Re: optimum speaker impedance for existing OTL designs? - Ralph 12:34:13 09/06/05 (0)
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