amb
Member of the Trade: AMB Laboratories
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- Apr 1, 2004
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ting.mike, the quiescent current will drift up and down based on heatsink and ambient temperatures. Your readings are not out of line.
Originally Posted by ting.mike /img/forum/go_quote.gif I'm trying to adjust the VR2, while getting the measurements on the R34, supposedly in the range of 55mV to 75mV. I can't seem to pin down an exact reading on the multimeter. The number jumps around from roughly 68mV to 74mV. Is the variation supposed to be that great? This is at amp operating temperature, and following all the guidelines from the amb website. I've measured the AC line, and AC voltage is pretty stable at 224-223 volts. DC power from the S22 is also pretty stable at 29.8 to 29.9 volts. |
Originally Posted by ting.mike /img/forum/go_quote.gif Thanks, all.. yes, I'm using the mini grabbers like in the one told by AMB. The Balanced Beta22 actually has been running flawlessly, and gosh, the sound is out of this world. I've never heard a headphone sounding so three dimensional. I'm just trying to adjust the VR2 to be more precise, but apparently that's quite a challenge due to the voltage always drifting up and down. I'll take pictures and post them soon! Thanks, Ti Kan, for this awesome amp! |