Audio Research VT 100 MKIII

The ARC VT100 Mk1 and Mk2 can be a bear to re-tube the small signal tubes. It's not for the novice.

http://mycollins.net/audio/artube1.html
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I understand the MKIII is a LOT simpler to bias, anyone have how the MKIII gets biased?

Sksos1,

http://www.drhifi.net.au/Reviews/ARC%20VT100%20Mk.III%20Review/1.htm
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I have owned the mklll since 2001 and it has not given me one problem. 100 percent reliable. I have retubed the amp 3 times and tubes have gone up about 30 percent since I have owned the piece. I think I have spent about 2300.00 on maintenance and that was just changing tubes and having them biased from a professional. That breaks down to less than 200 a year in maintenance cost. Pretty cheap considering the amount of tubes it uses.

"03-21-15: Sksos1
I understand the MKIII is a LOT simpler to bias, anyone have how the MKIII gets biased?"

If I remember correctly, the Vt-100 has one bias adjuster for each channel. That means you set the bias for all the tubes in a channel at the same time. You make 2 bias adjustments instead of 8.