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 ...

They decided to demo it using a giant bulb based VU meter. The control box ... The simple audio circuit used for the VU is based on the LM3915. You’ll find full plans on the site or you can ...