LM3915 Audio Level Meter Testing (numerous issues)

PCB Prototype $2 for 10 PCBs (Any Color):



The green LEDs are far too bright (probably gallium nitride types). The bottom LED stays on in dot mode. Nearly had an incident with a reverse connected tantalum capacitor too :)

Negative Voltage Dual DC12V -12V Power Supply Module 5-12V to ±12V For Amplifier

electronics,LED,op amp,light emitting diode,PCB,