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Tubelab Discussion and support of Tubelab products, prototypes and experiments

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Old 2nd March 2017, 03:50 PM   #31
Atk1d is offline Atk1d  Canada
diyAudio Member
Join Date: Mar 2014
Default Update

Hi all, After some time spent on this forum and critical analysis of the amp I solved it.

I have discovered that the volt meters I had installed were impeding the signal flow.

I temporarily disconnected them. Re tested the amp and it works and sound way better distortion free and loud.

Now one concern I have and it is the same in my first see the right channel seems to run at a lower volume then the left. ( When possible I've been adjusting balance thru player) to compensate.
Has anyone else noticed this, After all the recent checks I've done, pouring over schematic and parts, nothing is jumping out at me. Any clues?
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Old 2nd March 2017, 07:27 PM   #32
Atk1d is offline Atk1d  Canada
diyAudio Member
Join Date: Mar 2014
Default Whew, got it

Well I re wired the opt disabled the panel meters and
Jammed Ac/DC back in black on Vinyl.
All gear is assemble by me.
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Old 2nd March 2017, 09:10 PM   #33
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Join Date: Dec 2010
Location: Sale. UK
Odd that the meters would cause such an issue as others seem to have had good luck with them.

Glad you got everything working and a nice looking build.
TEAC RH 500 Amplifier Vista Phono1+ w/ TEAC TN-400. Loth-X Ion 1 BS & Emotiva XDA2. WIP: Tubelab SE 300b
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Old 3rd March 2017, 12:18 AM   #34
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Location: N. CA
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