Quote:
Originally Posted by wa2ise
You've seen them, my brother had one someone gave him, a combo AM/FM/LED flashlight. Has very little selectivity, as if they didn't bother with a filter in the IF stage. Uses one of those AM/FM radio chips, so sensitivity is cheap, but you still need to spend a little more for a decent IF filter...  |
I buy them at garage sales and thrift shops for a buck or less, just the disect them. It's really interesting to see, what went into them.
Going back a few years, the GE Superadio, that we all know and love, uses the same Toshiba main chip, as even their lower end, small clock and portable radios. The main difference is the front end board and some of the components in the output stage, plus higher battery voltage.
The output stage is in that chip! The chip doesn't even have a heat sink on it!
Even though, the output stage seems to put out more than a watt.
