I'm sure you must all be thinking "oh no, not another one", and I'm sure that somewhere on this forum there already is exactly what I'm looking for -- I'm just not confident that I've found it. I would be very grateful if someone would please guide me.
I have a small wireless IR video camera and receiver (for bird nest watching), both of which work fine off small 9v batteries, but don't want to work very well with off-the-shelf all-things-to-all-people multivoltage transformers (the batteries don't last much over 4-5 hours, unfortunately). I know that I have the (+) and (-) the right way around, BTW! I think that these cheap transformers are probably quite noisy, and I think I need a clean, regulated 9v power supply. I think I need a transformer-rectifier-smoother-regulator, but I'm not sure if those 4 components alone will do the trick.
Search came up with this one which looks like it would fit the bill, but from all the posts following the first one in the thread, I don't know if the original circuit is what everyone agreed in the end it should look like.
I would be most grateful for any help, please.
PS. I'm also considering using solar cells (4-5 mini-panels each providing 2v and 150mA) to run the camera (output power 200mW at 8~9v) -- is this likely to be a goer? or a waste of time?
I have a small wireless IR video camera and receiver (for bird nest watching), both of which work fine off small 9v batteries, but don't want to work very well with off-the-shelf all-things-to-all-people multivoltage transformers (the batteries don't last much over 4-5 hours, unfortunately). I know that I have the (+) and (-) the right way around, BTW! I think that these cheap transformers are probably quite noisy, and I think I need a clean, regulated 9v power supply. I think I need a transformer-rectifier-smoother-regulator, but I'm not sure if those 4 components alone will do the trick.
Search came up with this one which looks like it would fit the bill, but from all the posts following the first one in the thread, I don't know if the original circuit is what everyone agreed in the end it should look like.
I would be most grateful for any help, please.
PS. I'm also considering using solar cells (4-5 mini-panels each providing 2v and 150mA) to run the camera (output power 200mW at 8~9v) -- is this likely to be a goer? or a waste of time?