post your comments, etc in here. schematics go in the other areas, not here.

here's where I answer emails, for people (hopefully) to glean useful info

the section is for straight up amps

audio filter schematics

audio mixers

this section of the Audio Schematics Section is for preamplifiers

circuits to sense sounds and then take action, or signal so something else can take action

noise makers, anything that generates tones, or sounds..

circuits to manage the charging of batteries

various circuits used to monitor the strength of a battery

anything that doesn't fit into another category

power supplies schematics

doubles voltages

inverts polarity of supplied voltages

transmitters for radio applications.. (broadcasting voice, music, etc..) fm, and am

Uh.. yeah technically these could go under radio, except they're not for voice applications...  switches, controllers and the like.

circuits that give off a beacon that you can track.

modulators, ir transmitters, ir detectors, remotes, switches, etc..

schematics that are for manipulating the led's in a cool way.. blinkers, etc..

various circuits that don't quite fit into the other categories. includes games, priority encoders, jammers, flame detectors, intercoms, nightlights, etc..

eavsdropping circuits, phone-in-use indicators, caller id, eavsdropping protection, etc..

ultrasonic transmitters, ultrasonic detectors, switches, etc..