Originally Posted by bmichels
GREAT looking project. Once you have done it, I may follow your route and built myself my own amp. With recabling inside with super-cables, XLR headphone plugs, ... and of course those super vu-meters.
But... how what are they for (besides super look) ? Can you use them for Tube biasing ?
One improvement I may investigate is to have a Balanced amp. Indeed, it looks like everything in this amp is doubles: one circuit for right and one circuit for left ? is it correct ? so may be we can apply a totally separate R/L input (RWAK-120-B balanced) and have a balanced XLR phone output ? ( I don't know if it is "that easy" ?)
great idea to use them for tube biasing, but they just show the left and right signal's level like old cassette decks. for a balanced amp you need twise the amplification stages, which means 2 tu-05, what is possible with the tu-05 is a double mono design.
this is a standard little dot amp:
this is the balanced version of a little dot amp:
balanced one channel buffer / amp:
a normal amp / input has ground and signal.
a balanced amp / input has -signal, +signal, virtual ground in the middle
Edited by GermanGuy - 9/1/13 at 5:48am