Here's what I want to do: I want to take an antenna/CATV input and remap all the channels by say a factor of 100. Then I want to combine that remapped signal with an unaltered signal. What I'm trying to do is elminate an A/B switch. Is this possible? Anyone know where I can start?
I just moved my sub from behind the TV to behind the couch for space reasons. I ran wire up one wall, through the attic and down another wall. Now the sub woofer humms when the amp is off. It's a sperately powered sub. It never used to hum when it was behind the TV and it doesn't hum when the...
I had the same problem with my Sony DVD player getting too hot. I looked around and didn't find what I wanted, so I built it. I got a standard computer case fan (70mm) and a 12V AC adapter. The fan was too noisy for my tastes. What you need to do is get a 50-Ohm variable resister (or...