The symbol you are referring to is ground (GND) and is the same as the negative (-) terminal of the battery.Thanks audio guru, i am confused, and thankyou all for the help, i have attached how i wired up the circuit (i know its basic and silly how i dont get it),
what does that last symbol indicate within the circuit i have wired it up just how the led calculator had shown me, nevertheless i have attached how i have wired up the circuit so whatever is wrong with it please let me know as i am a complete novice also would a higher resistance be better to use without my LEDS popping as they are getting very bright.
BILL: the LEDS forward V is shown as 3.2 from the manufacturers list
The circuit is wired correctly, god job.
Since your 6V battery can have 7V or more fully charged I would increase the resistor values to 220 Ohms for each LED.
With this value of resistor you may notice a dimming when the voltage gets close to 6V, which would be a good indication that the battery needs charging. (Don't quote me on just how noticeable the difference will be.)
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