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Old 13th December 2020, 05:03 AM   #91
vkung is offline vkung  Canada
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Join Date: May 2005
Location: Vancouver BC Canada
loved how all the delicate little details came through
this is characteristic of Lundahl opt
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Old 2nd January 2021, 08:42 AM   #92
sharpi31 is offline sharpi31  United Kingdom
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Join Date: Oct 2005
Lundahl for TU-8200
I received my transformers from Victor before Christmas and finished my new TU-8200R build a few days ago. I didnít try the standard transformers - I went straight to the Lundahls.

Iím very happy with the amp. Even though the Lundahls are mounted close to the power transformer (and one is also close to the mains power connection) there is very little hum - less than any of my other tube amps. I need to put my ear very close to my 94dB+ econowaves to hear anything. Iím using Ultralinear mode and only the lower impedance secondaries. I definitely agree that the small details are resolved very clearly. I canít remember the name of the track (something from XX br The XX) but the song starts with a xylophone(?) before guitar and bass are added - this thing that stood out was that the quieter xylophone remained sharply resolved and in focus even when the grittier/louder guitar and bass were added. Itís was very cool.

Victor was extremely helpful. After Iíd sent payment he very quickly arranged shipping to the UK, and the delivery was fast. He was also very quick to respond to emails/questions. Many thanks Victor!
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Old 2nd January 2021, 05:34 PM   #93
vkung is offline vkung  Canada
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I need to talk to you
It should be dead quiet
Can you send me some photos ?
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Old 2nd January 2021, 10:39 PM   #94
sharpi31 is offline sharpi31  United Kingdom
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Lundahl for TU-8200
Hi Victor, sorry if I gave the wrong impression - the amplifier is extremely quiet, there is no noticeable hum/noise. If I put my ear directly in front of an Eminence 3012LF driver (1-2Ē from the cone) I can hear the smallest trace of hum, but itís not audible from 12Ē or more even in my quiet room. The tiny amount of hum is less than my Monarchy SMó70 Pro and about the same as my Aleph J (which has a lot of capacitance and CLC PSU). The TU-8200R and Lundahls are performing brilliantly
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Old 2nd January 2021, 11:22 PM   #95
vkung is offline vkung  Canada
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That is good
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Old 23rd January 2021, 05:30 PM   #96
vkung is offline vkung  Canada
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Join Date: May 2005
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The next shipment of LL2777B will be available in the 1st week of February

Here are the recommendations to upgrade TU-8200 and TU-8200R

TU-8200
Lundahl LL2777B X2
4 X Cathode BY Pass Caps to OS-CON (Low ESR cap)
4 X Coupling caps Mundorf EVO Silver Gold
Replace the stock 12AU7 to RCA Clear Top or Brimar ECC82/12AU7

TU-8200R
Lundahl LL2777B X2
4 X Coupling caps Mundorf EVO Silver Gold
Replace the stock 12AU7 to RCA Clear Top or Brimar ECC82/12AU7
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Old 24th January 2021, 03:29 PM   #97
sunil is offline sunil  India
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Join Date: May 2003
Location: Bangalore, INDIA
Hi sharpi31. I'm using the TU-8200 with stock transformer on Altecs. They are dead silent, just a trace of hiss, which is a necessary evil.

Earlier the 12au7 pins were dirty and it made a ridiculous difference. Now I clean pins before mounting any new valve.

I'm using it with Brimar 807 though.
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Old 24th January 2021, 04:12 PM   #98
Dneu2011 is offline Dneu2011  United States
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Join Date: Jul 2017
Victor, do you sell an 8200R with the upgraded package you described above and how much over the original $800ish kit?

Thanks.
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Old 24th January 2021, 07:53 PM   #99
vkung is offline vkung  Canada
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The Lunadhl LL2777B is $310
Mundorf EVO Silver Gold is $45 each
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Old 10th February 2021, 02:01 AM   #100
vkung is offline vkung  Canada
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solution from MR Lundahl

I should have LL2777B next week from Sweden
LL2777B + PCB + HV cable + Bracket
Click the image to open in full size.
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