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Old 5th November 2003, 06:30 PM   #1
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Default Curcio or Triode Elec for ST-70 hot rod parts?

I'm looking to install a cap board and new driver board. The cap boards seem more or less identical.

Can anyone characterize the differences between Triode's and Curcio's driver board upgrades?

Thanks.
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Old 5th November 2003, 06:35 PM   #2
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Curcio's driver boards are all-triode and use a CCS diff-amp with on-board regulation. IIRC, the Triode board has a pentode input driving a triode split-load inverter.

I'm a big fan of Ned Carlson and have bought a lot of stuff from Triode over the years, but the Curcio design is much more sophisticated.
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Old 5th November 2003, 07:37 PM   #3
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Are you refering to his standard or premium upgrade board? The premium board is a little spendy.

Thanks.
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Old 5th November 2003, 08:25 PM   #4
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Hmmm, the one I have is from the Glass Audio article. I'd guess it corresponds to the standard board.
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Old 5th November 2003, 09:42 PM   #5
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And now there is the Welborne Labs mod that I just found. That one kind of scares me as I want to do the cap and driver board separately to keep it simple.
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Old 5th November 2003, 10:50 PM   #6
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If you really want to be scared, check this out:

http://acupuncture.com/Reviews/curio.htm
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Old 6th November 2003, 08:45 PM   #7
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That was scary.

I just ordered Curcio's cap board and some new sockets.
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Old 7th November 2003, 02:23 AM   #8
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Not a kit... but a really good upgrade;

Click the image to open in full size.

from Allen Wright at Vacuum State

dave
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