Gadget Hacks Forum

Forum Thread: Seeking DIY Carbon Microphone Diagram

In the 1940's (1946/1947) Popular Science magazine printed a DIY diagram of a high impedance microphone using an old battery carbon core and a headphone to listen (rather than speakers). It used a simple wood base and was very sensitive; you could hear a cock-a-roach walking on the wood or a fly's buzz if it landed on the base. ANYONE WHO MIGHT HAVE A COLLECTION OF THESE MAGAZINES AND CAN PROVIDE A COPY OF THE DIAGRAM WOULD GREATLY HELP ME WITH MY PROJECT.

Forum Thread: Hi.

I recently had a problem with my facebook account i seem to have lost 90% of my friends list this is the second time it has happened.my friends list is down to 25 instead of200+also there is no record of me deleting anyone on my activity log. I can't possibly find and send request to everyone on that list can anyone help me retrieve those friends.thank you

Forum Thread: Okay, I'm Really New to Spotify and Don't Understand Something...the Money Situation .....

I'm really frustrated and feel stupid....I wanted to try the premium version and got a 7-day trial..ok, well, the problem is I didn't write down my username or password, however, I did give them my credit card #..and now it's telling me that there's a free 30-day trial, then they take the $9.99 off of my credit card....Does anyone out there know how I can cancel it, lease help ???????? oh I'm gave my card for Samsung Android tablet 5.2....

Forum Thread: Sony Xperia Z3 Camera Not Working

Hi guys, Ive been doing research for a couple of weeks on how to fix the error I'm getting when trying to use my stock camera app on my Sony Xperia Z3 Tablet Compact. I tried to take a normal picture and then it froze. Restarting the app gives me an error that Camera has stopped. The tab is running on lollipop and doesn't show any new updates for it. I tried to factory reset the tablet but still shows the same error. Please help.