@ alexei's today – working on connection of usb sound device, amplifier, transformer and speakers. see pictures. it all works ;)
i was soldering all the "simple" parts of the amplifier: diodes, capacitors, etc. but when it got tough alaxei jumped in to rescue.
next: to finish this side of a unit we need to connect this to a hive device, a break box and sensor.
on the other side is laser – we need to sort out power supply for this. i think this is what we're going to to on thursday or friday this week… we'll see.