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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: Re: silver-plated copper posted by TerryC on February 14, 2005 at 12:55:20:
Hi -The lower stepdown ratio, plus the autoformer configuration does help minimize some of the capacitive effect, but, IMO, it still reintroduces several of the traditional weaknesses of a conventional transformer coupled output to a reduced degree. The question is then whether the reduction in distortion, increase in damping factor and increase in power is worth it for the application at hand.
I've always run my DC coupled OTL direct into the load, but when I was pushing it hard into the nominal 4-5 ohm load of the Basement Blasters a while back, I realized eventually that its distortion was audibly somewhat higher than into an easier load, but in this case, I was able to compensate here by biasing the OTL somewhat farther into Class A operation and accepted the slight loss of power.
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Follow Ups
- Re: silver-plated copper - Tom Dawson 20:14:43 02/16/05 (0)
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