Interesting project by Andrija Sabolcki. Hand made, 150W/8ohm pc, 4 tube hybrid integrated amplifier with 96 steps relay attenuator, built in 24bit DAC and 4 line inputs. Control belongs to Microchip PIC. There is 16F887 as display control and 16F886 as control of 96 steps attenuation. Chasis is combination of steel, aluminium and glass as cover. Made in Serbia.