Can I use this circuit as simple delay circuit for relay and can I change specified transistors with ordinary like bc550/546/2N5551 etc...And what components should I change except capacitor lets say that delay would be 3 sec. I would put there 47uF is that OK?
I think the first transistor is being used as a zener, so any substitution would have to take the zener characteristic into account. Maybe it's better to use a 555, or an op-amp or comparator with hysteresis.
I think the first transistor is being used as a zener, so any substitution would have to take the zener characteristic into account. Maybe it's better to use a 555, or an op-amp or comparator with hysteresis.
