Could y’all help me understand what this means in this schematic? Does it mean that pin needs to connect the positive side of the power

 

Yes.

 

Yes.

Succinct. lol. Thank you.

 

AKA a Power flag.

 

AKA a Power flag.

Learned something new. Thank you. Merely a schematic symbol, correct?

 

Yes.
In some circuits there can be more that one that indicate other sources, e.g. -15vdc, +15v etc.
Just as you can have different Ground symbol/references in the same schematic..

 

Yes.
In some circuits there can be more that one that indicate other sources, e.g. -15vdc, +15v etc.
Just as you can have different Ground symbol/references in the same schematic..

Got it

 

+6v to resistor (same as source power) is part of voltage divider , so as for preset lower volts as a reference for the op amp. The variable signal input compares with preset, then op amp clicks if under or over volts.

 

I bet you R3 and R4 are the same value.
You don’t need R6.