Can Form 8655 Indicator 2024

I like to add power indicators to my projects, particularly ones that are powered. There are two reasons for this: first, it serves as a safety feature because when you see the indicator lit up, you know the unit is powered. However, it's important to never assume that an indicator is actually working at any given point. It's always necessary to double-check, especially when working on unfamiliar equipment. For traditional line controller type equipment, I used to put a neon indicator and resistor on the main side, along with an LED and resistor on the low-voltage side. This setup allowed me to determine if both the low voltage and mains supply were healthy. If the LED was off and the neon was on, it suggested a problem with the power supply. This basic diagnostic aid proved to be useful. In my controllers, I also included self-diagnostics, so the triac circuits would have a neon on the main side and an LED on the low-voltage side. This simple arrangement allowed the LED and the neon to alternate, making diagnostics easy. It's always beneficial to include these indicators. If you have a low-voltage supply, adding an LED and resistor is simple. However, if you only have mains voltage, using a neon is the easiest option, although it may not be as panel-friendly in modern equipment. To test this, I will connect a neon and resistor across the terminals, which are currently live at 240 volts. You can see the classic neon indicator shining while paired up. But even though it's lit, the unit won't power up until I close the pins in the lid into the receptacles. This is just a safety feature for a quick test. I will now solder the neon indicator, but I can't connect it directly across the...