Hello,
Excuse my ignorance, but I just have a few simple questions about this circuit. I got it from a British book so some of the symbols are throwing me off...
1. First off, the resistors are supposed to be labeled 75ohm, 33ohm, etc. instead of 75R, 33R, right?
2. The elements labeled 1, 2 and 3 are light-dependent resistors. What about the relay, is it an SPST relay? If the author instructed to use a 9V relay, would a 12V relay work too?
I'll have some more questions a little later...Thanks for taking the time.
Excuse my ignorance, but I just have a few simple questions about this circuit. I got it from a British book so some of the symbols are throwing me off...
1. First off, the resistors are supposed to be labeled 75ohm, 33ohm, etc. instead of 75R, 33R, right?
2. The elements labeled 1, 2 and 3 are light-dependent resistors. What about the relay, is it an SPST relay? If the author instructed to use a 9V relay, would a 12V relay work too?
I'll have some more questions a little later...Thanks for taking the time.
Attachments
Last edited: