Hello,
Sorry for the year long bump, but i have a relevant question.
What is the practical purpose of the first main lamp? I feel like its only use is to lower the circuit's voltage once an SCR is triggered and stop current from going through the zener.
Could the first main lamp be replaced with a resistor of equal value?
Does the main lamp have an application when using the buzzer system? The way i see it, when someone buzzes in, their buzzer will alright light up so there is no need for an additional main lamp to light up.
Also, will this circuit need to be turned off everyone time someone answers so it resets?
Sorry for the year long bump, but i have a relevant question.
What is the practical purpose of the first main lamp? I feel like its only use is to lower the circuit's voltage once an SCR is triggered and stop current from going through the zener.
Could the first main lamp be replaced with a resistor of equal value?
Does the main lamp have an application when using the buzzer system? The way i see it, when someone buzzes in, their buzzer will alright light up so there is no need for an additional main lamp to light up.
Also, will this circuit need to be turned off everyone time someone answers so it resets?