The build relies on a very simple circuit that relies entirely on analog ... The result is an attractive rainbow VU meter display that would look great as a part of any old-school stereo setup.

he’s added a set of LED VU meters in a ring round the edge of the platter. Behind the LEDs is the trusty LM3915, an integrated circuit which will no doubt be familiar to any reader whose earlier ...

which in fact refers to -4 dB or -4 VU on the meter. Zero level is the reference level obtained with a 1000 Hz signal and 1 milliwatt of power in a line or circuit of 600 ohms resistance (a 600-ohm ...