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Old 24th September 2019, 11:15 AM   #31
paczeltf is offline paczeltf  Hungary
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Quote:
Originally Posted by bob704 View Post
Hi Victor, could I buy unit 1 and 2 for modification of TU-8200dx
If you are not rolling tubes very often, you do not really need to upgrade as the core part is practically the same, the difference happens when malfunctioning.

Also, the new unit 2 lets you control the headphone output level but not the output impedance so you may still need a custom configuration for your phones.

I will post a detailed comparison later.
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Old 24th September 2019, 04:57 PM   #32
redbob is offline redbob  Canada
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Can I replace 6L6 tube with 807/with adapter/ in my TU-8200 amplifier. Is it better option?
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Old 24th September 2019, 09:25 PM   #33
vkung is offline vkung  Canada
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yes you can use 807 with 807/6L6 adapter
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Old 24th September 2019, 11:56 PM   #34
bob704 is offline bob704
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Thank you Victor.
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Old 14th October 2019, 07:15 PM   #35
Peterwendy33 is offline Peterwendy33  Netherlands
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Have bought the TU-8200R. This was the Japanese version (100V). Have built it and with a small mod on the T3(PWT) PT-8200-UNI, it runs now for 3 weeks on 230V. (all voltages within spec) Love the sound. Next mod will be the Alps 27 and some different tubes.
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Old 16th October 2019, 12:53 PM   #36
chongsuk is online now chongsuk
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Join Date: Apr 2018
ELEKIT TU-8200R
Quote:
Originally Posted by Peterwendy33 View Post
Have bought the TU-8200R. This was the Japanese version (100V). Have built it and with a small mod on the T3(PWT) PT-8200-UNI, it runs now for 3 weeks on 230V. (all voltages within spec) Love the sound. Next mod will be the Alps 27 and some different tubes.
Hi peterwendy33, what was your mod? I also bought Japanese version but modified the connector instead of the board.

Hi vkung, when will Lundahl OPT be available?

Thanks
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Old 16th October 2019, 07:56 PM   #37
Peterwendy33 is offline Peterwendy33  Netherlands
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Hi Chongsuk, I did the same as you with the connector. Nothing on the board. Might change the selector for the led, with a switch on the back. Stil thinking about wether or not to go for the DAC.
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Old 16th October 2019, 10:02 PM   #38
paczeltf is offline paczeltf  Hungary
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Quote:
Originally Posted by Peterwendy33 View Post
Stil thinking about wether or not to go for the DAC.
Are you talking about Elekit PS-3249R? I bought that along with the TU-8200. It is an OK basic USB powered DAC with higher output voltage than what you get from an average portable device, and is good soldering exercise, but the amp deserves a much better DAC. I decided not to build it into the amp as it requires external wiring anyway.

You can improve the sound quality with external power supply and clock generator but IMO it is not worth the effort.
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Old 18th October 2019, 07:14 PM   #39
Peterwendy33 is offline Peterwendy33  Netherlands
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Hi paczeltf, I was thinking about the Elekit PS-3249R. I had my doubts about it. As you wrote it's externaly wired, so no gain for me. Would have been nice if it was wired internally. So on with the quest in the search of a good DAC.
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