Tube
amplifier modifications and repair |
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Your tube amplifier
that doesn't work (properly) anymore or you would like to upgrade but you
are not sure what to do or where to start. Contact us at info@acoustic-dimension.com |
Some
examples of our work.
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![](../pictures/tubemod/first150x150.jpg)
click on pictures to enlarge |
Audio
Innovations "the First"
replaced the original 8-pin oktal sockets with Azuma UX-4 sockets.
The stock Audio Innovation "First" uses Chinese made 2A3
tubes with an oktal socket. These tubes are getting hard to find
these days, but more important they sound much less then the Sovtek
monoplate 2A3's or the Fullmusic meshplate 2A3's (these last are
absolutely the best we know)
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![](../pictures/tubemod/300Bpp150x150.jpg)
click on pictures to enlarge
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Complete
build of a 300B PP kit
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![](../pictures/tubemod/ANdacnamod150x150.jpg)
click
on pictures to enlarge |
Audio
Note DAC 1 upgraded to DAC 4
Ordered custom made power transformer. Made tube rectified choke-input
powersupply for the tube stage. Replaced E88CC tubes with E182CC's.
Replaced lots of capacitors on the digital board with Black Gate
N serie caps. Replaced on the analog board the stock resistors with
Riken Ohm.
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![](../pictures/tubemod/st300B150x150.jpg)
click on pictures to enlarge
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Stoetkit
300BSE kit
replaced the dreadfull sounding stock metalfilm resistors with Riken
Ohm and changed the layout of the ground lines
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![](../pictures/tubemod/arcVT200-150x150.jpg)
click on pictures to enlarge
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Audio
Research VT200 MK1
repaired amplifier
and retubed with new Svetlana 6550C tubes
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