Working (small scale) circuit for Large VU-meter. Now I’m going to make first large scale prototype.
Part list
All parts except relays can be found on www.taydaelectronics.com. Relays are changeable to different ones.
- R1, R2, R3, R5, 10k resistor
- R4, 1.5k resistor
- R6, 100k resistor
- RV1, 50k linear potentiometer
- C1, C2, 100nF ceramic disc capacitor
- Q1, BC547 or 2N3904
- U1, LM3915 or LM3914 Dot/Bar Display Driver ic
- 18 pin DIP ic socket
- RL1-RL10 – G3MB-202P-5VDC