Search found 250 matches

by toejam
Thu Feb 14, 2002 6:19 pm
Forum: General Discussion
Topic: surveillance tools
Replies: 3
Views: 1761

Re: surveillance tools

An easy way of doing this would be to buy a p.i.r. motion detector at leows or somewhere-about $25.00 and mount it along with an extention cord or installed wiring system so it covers the zone you wish to protect. That will light up anytime some one-thing passed through its window.A siren or 10x xmi...
by toejam
Thu Feb 14, 2002 5:55 pm
Forum: General Discussion
Topic: Monopoly crooks
Replies: 2
Views: 1159

Re: Monopoly crooks

how about contacting games.com and suggesting they put a timer into thier programing.Thry will probabally be grateful for a something that would improve thier site.
tj
by toejam
Wed Feb 13, 2002 6:19 pm
Forum: General Discussion
Topic: triac problems..
Replies: 19
Views: 6173

Re: triac problems..

a simple solution may be to wire the flashing circut to bypass the triac when activated. A zero crossing circut modification might work.
tj
by toejam
Wed Feb 13, 2002 9:10 am
Forum: General Discussion
Topic: electronic govener for gas engine
Replies: 29
Views: 11156

Re: electronic govener for gas engine

apolagy accepted although certianally not neccessary Ron. Thanks for making me add the 555 to give a fixed pulse width I doubt it could have worked (if it will) without that.
tj
by toejam
Wed Feb 13, 2002 8:28 am
Forum: General Discussion
Topic: electronic govener for gas engine
Replies: 29
Views: 11156

Re: electronic govener for gas engine

hi Ron, Thr pulses coming out of the ingition primary or secondary circut shound be a direct function of the r.p.m of the engine.Lets say we are using a 12 volt regulated power supply to supply the mosfet.The clean pulse would best be provided by a one shot that fires for a predetermined amount of t...
by toejam
Wed Feb 13, 2002 7:41 am
Forum: General Discussion
Topic: electronic govener for gas engine
Replies: 29
Views: 11156

Re: electronic govener for gas engine

Ron, I said a regulated power supply.If the supply to the mosfet is constant and i think a seven horsepower generator should be able to provide 5-6watts of power necessary to operate that supply,once it is up to its working speed,as far as i can see,the only variable will be the rpm of the system wh...
by toejam
Wed Feb 13, 2002 6:09 am
Forum: General Discussion
Topic: electronic govener for gas engine
Replies: 29
Views: 11156

Re: electronic govener for gas engine

I would get a clean 5volt pulse from the ignition circut that you can feed into the gate of a mosfet that is logic driven and is in series with a soloniod and a regulated power source-the duration of the pulse (either the on or off time of it can be used) to form a pulse width modulated power regula...
by toejam
Wed Feb 13, 2002 6:04 am
Forum: General Discussion
Topic: electronic govener for gas engine
Replies: 29
Views: 11156

Re: electronic govener for gas engine

I would get a clean 5volt pulse from the ignition circut that you can feed into the gate of a mosfet that is logic driven and is in series with a soloniod and a regulated power source-the duration of the pulse (either the on or off time of it can be used) to form a pulse width modulated power regula...
by toejam
Wed Feb 13, 2002 5:03 am
Forum: Robotics
Topic: Computing brain size and complexity
Replies: 15
Views: 7607

Re: Computing brain size and complexity

you've brought op an interesting point,Harold, but instead of larger brains,I thought faster clocks were the answer.Prehaps combining the old style analogue math like op amps for course movements and using the digital stuff to finish the job might be applicable.
by toejam
Wed Feb 06, 2002 7:08 pm
Forum: Robotics
Topic: Computing brain size and complexity
Replies: 15
Views: 7607

Re: Computing brain size and complexity

Where's the logic?
by toejam
Wed Jan 16, 2002 7:53 pm
Forum: General Discussion
Topic: Speech Recognition Help
Replies: 3
Views: 1828

Re: Speech Recognition Help

try allelectronics.com they got a kit for it for <50 bucks
by toejam
Wed Jan 16, 2002 7:52 pm
Forum: General Discussion
Topic: Speech Recognition Help
Replies: 3
Views: 1828

Re: Speech Recognition Help

try allelectronics.com they got a kit for it for <50 bucks
by toejam
Wed Jan 16, 2002 7:38 pm
Forum: General Discussion
Topic: Cordless Phone Linear
Replies: 26
Views: 8761

Re: Cordless Phone Linear

to legaly do that you must first examine and analyze all the fcc regulations pertaining to the alloted power and frequency deviation in the particular frequency band you wish to operate in.After you have determined the parameters you wish to operate in spend enough time educating yourself on how to ...
by toejam
Tue Jan 08, 2002 6:51 am
Forum: General Discussion
Topic: DC to DC voltage doubler
Replies: 4
Views: 2274

Re: DC to DC voltage doubler

real good chance you will find a 4-5 v solar cell for 5-6 bucks by shopping the surplus houses