Designing and building a VU Meter driver.

Retro Analog Audio VU Meter From Scratch! : 7 Steps (with Pictures) - Instructables

Building a VU Meter into a Case of a CD-ROM Drive - EEWeb

Practical VU Meter Circuits - Michael Fidler, Classic Audio Ltd

EASY TO ADJUST: A driver board can control 2 VU meter heads, with 3 potentiometers, and can adjust the backlight brightness and pointer swing

Power Amplifier VU Meter with Driver Board Kit High Accuracy Audio Level Meter with Backlit for DIY Home Car White

Practical VU Meter Circuits - Michael Fidler, Classic Audio Ltd

VU Meter Driver (DC meters) for DIY Guitar Pedals

Analog VU meter driver

Professional Audio VU: Using professional audio VU driver IC, this IC small signal pointer contains dynamic compression circuit, logarithmic output

VU Level Meter Driver Board Module Kit, PCB DC 9‑12V VU Meter Driver Board Logarithmic Output Characteristics for Sound System

Analog VU meter driver

Retro Analog Audio VU Meter From Scratch! : 7 Steps (with Pictures) - Instructables

Maximum Current Sensitivity: 500uA±10%, internal DC impedance: 650Ω±10%, insulation resistance: above 50MΩ, this VU meter is widely used in DIY,

Portable VU Meter with Driver Board Kit VU Meters Board Adjustment Power Amplifier DB Meter with Backlit for DIY Home Car Used in Recording Studio

There is a logarithmic circuit. Size of the board: 60 x 50 x 15mm. YOU WILL GET ALL THE PARTS TO ASSEMBLE THE BOARD YOU SEE IN THE PICTURES.

DIY KIT Analog VU meter stereo driver BOARD ONLY (NO METERS)

LED VU Meter circuits using transistors, 5 to 20, 40 LED

4 Simple VU Meter Circuits Explained - Homemade Circuit Projects