I've got a few questions that may be basic and yet all perhaps are ignorant because, due to my limited knowledge, this is most likely a given. Besides, once one asks a question the fact that they fielded it in the first place proves ignorance!
Firstly a simple question. What common electronic devices you may find lying around the house have step up transformers as opposed to step down transformers?
Secondly, is what I've read true that silicon junctions pretty much have a threshold voltage of .7 whereas germanium diode junctions have a threshold voltage around .2?
Thirdly, if I used a step up transformer in conjunction with either silicon diodes or germanium diodes (and perhaps a few capacitors) would it be possible to harness some of the electromagnetic energy that bombards me each second as I type this and also bombards whomever may be reading this each second as well? From what I gather I need to step up with silicon diodes to a voltage over .7 as stated above and if I were using germanium diodes I'd have to step up as well but not as high. Anyone get where I'm attempting to go with this?
Firstly a simple question. What common electronic devices you may find lying around the house have step up transformers as opposed to step down transformers?
Secondly, is what I've read true that silicon junctions pretty much have a threshold voltage of .7 whereas germanium diode junctions have a threshold voltage around .2?
Thirdly, if I used a step up transformer in conjunction with either silicon diodes or germanium diodes (and perhaps a few capacitors) would it be possible to harness some of the electromagnetic energy that bombards me each second as I type this and also bombards whomever may be reading this each second as well? From what I gather I need to step up with silicon diodes to a voltage over .7 as stated above and if I were using germanium diodes I'd have to step up as well but not as high. Anyone get where I'm attempting to go with this?