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Elekit TU-8900 Filament Transformer Testing

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I did stupid mistake when ordering the custom power transformer. I didn't factor in the upgrade of better diodes which have higher voltage drop as well. So eventually I will need either to order new power transformer or just simply adding separate filament power transformer for the 12AU7.
A stupid and costly mistake! Will be a great lesson learn for me.

Опубликовано:

22 авг 2024

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Комментарии : 10

@heromail2903 2 месяца назад

Mr Jimmy please review also about loudspeaker, thank you

@jimmysjunkyard 2 месяца назад

Sure maybe someday. Thanks.

@johnwilliamson467 5 месяцев назад

what I have been doing is regulating the dc with a lt3086 so about 10volt secondary and dc at about 13 volts dc regDOWN TO 6.15 VOLT ( ABOUT 95 % ) of center( 6.3) longer life and lower distortion . Very low noise on the heaters elevate 45 volt off ground on the au7 my data so far . Separate transformer for just the heaters will be far less costly a work around . Enjoy the video .

@jimmysjunkyard 5 месяцев назад

Thank you for good suggestion!

@loureda5443 5 месяцев назад

Hello, just keep the existing transformer and put in a voltage doubler on the secondary filiment winding and regulate down to 6.3 volts from there. Cheers Lou

@jimmysjunkyard 5 месяцев назад

Make sense, thank you.

@Stephenwongdirectimaging 10 дней назад

What is new update. Mod elekit 8900 completed ?

@jimmysjunkyard 6 дней назад

No update yet. Busy with other stuff. Sorry...

@davidturney2942 5 месяцев назад

Can I suggest that you need someone to help you edit your videos? An impartial observer would have advised that there is about one minute of content and the rest is padding/repetition. I'm sure there are many people interested in the TU-8900 but posting just for the sake of it will tempt viewers to unsubscribe.

@jimmysjunkyard 5 месяцев назад

Thank you for your comment.