• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Good quality 6600 CT OT

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diyAudio Chief Moderator
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Have not listened to a Hashimoto. Dont know if James is near good enough and a better value. Others may help here.
For any decent system a better OPT is always suitable. No question about it. Its that the Audionote is really good and the price is good. Windings are OFC copper and the core is double the lower limit. But as I see now, Eico HF-20 is a UL amp so you have to forget the AN 185. AN does not believe in UL and has no UL taps on its OPTs.
A good and cheap double C core (another more modern valid approach which may be considered an improvement by technical principle, opinions vary) is what Serbian Korato offers and can be even custom wound to your impedance requirements with UL taps at the percentage required by Eico design. See here.
 
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