Search found 250 matches

by toejam
Sun May 19, 2002 5:40 am
Forum: General Discussion
Topic: Meter
Replies: 3
Views: 1247

Re: Meter

If you start asking around enough you will find someone who will sell you a used one.I think I paied about ten bucks for mine.
tj
by toejam
Thu Mar 28, 2002 3:47 am
Forum: General Discussion
Topic: circuit help
Replies: 10
Views: 4200

Re: circuit help

Is this circut follow a sequence?
tj
by toejam
Tue Mar 26, 2002 6:22 am
Forum: General Discussion
Topic: 12v DC - 9v DC
Replies: 5
Views: 2453

Re: 12v DC - 9v DC

I believe you can solve your problem with a five watt 1k pot. Insert it in series with the battery terminals of the stun gun and the car battery and with the pot at it's maximum resistance turn it down till you read 9 volts across the gun's battery terminals.Than read the resistance with an ohmmeter...
by toejam
Tue Mar 12, 2002 3:49 am
Forum: General Discussion
Topic: how to build a 24GHz transmitter?
Replies: 12
Views: 7436

Re: how to build a 24GHz transmitter?

I'm not sure about those frequencies,but there were a number of transmitters designed for that function they may still lurking around in a classified in an electreonics or car nut magizine out there.
by toejam
Tue Mar 12, 2002 3:48 am
Forum: General Discussion
Topic: how to build a 24GHz transmitter?
Replies: 12
Views: 7436

Re: how to build a 24GHz transmitter?

I'm not sure about those frequencies,but there were a number of transmitters designed for that function they may still lurking around in a classified in an electreonics or car nut magizine out there.
by toejam
Fri Mar 08, 2002 1:16 pm
Forum: General Discussion
Topic: 120 volt, 15,000 watt dc generator conversion
Replies: 9
Views: 3014

Re: 120 volt, 15,000 watt dc generator conversion

I would most certianly insert a fuse in series with the output.Thrs probably a 150 or so amp fuse there somewhere i'd get a 10 amp fuse and maybe a old dryer element for load testing.One thing you may find is a warm up circut that limits the engines rpm till it warms up.If that's so, you may not get...
by toejam
Fri Mar 08, 2002 4:04 am
Forum: General Discussion
Topic: 120 volt, 15,000 watt dc generator conversion
Replies: 9
Views: 3014

Re: 120 volt, 15,000 watt dc generator conversion

crank that thing up and put a meter on it.You don't have to use all the current it can produce and 200 a 100 volt diode packs are not that expensive,If nothing else you can use it to make hot water while doing your wash.
by toejam
Wed Mar 06, 2002 6:56 am
Forum: General Discussion
Topic: 120 volt, 15,000 watt dc generator conversion
Replies: 9
Views: 3014

Re: 120 volt, 15,000 watt dc generator conversion

wow that's a neat find.You should be able to get that thing to produce most any voltage you want to by varying the amount of power applied to the field winding.You will have to find the connections to the field and check the volts there.I suspect it to be the same as the output.To lower the output l...
by toejam
Sat Mar 02, 2002 6:16 am
Forum: Robotics
Topic: Computing brain size and complexity
Replies: 15
Views: 7991

Re: Computing brain size and complexity

what exactally duz a neuron do? Does it have any kind of residuial memory?What a bout frequency response decay rate according to fatigue(power limiting)Response to outside chemical changes.Response to electrical intensity and polarity changes.temp,sound intensity ect.
by toejam
Sat Feb 23, 2002 5:57 am
Forum: General Discussion
Topic: momentary signal to a shift register - how?
Replies: 9
Views: 3366

Re: momentary signal to a shift register - how?

bouncy switch betch'a
tj
by toejam
Thu Feb 21, 2002 3:42 am
Forum: General Discussion
Topic: Electromagnetic Information ....
Replies: 16
Views: 5983

Re: Electromagnetic Information ....

hi again the only thing an electromagnet will repel is a magnet that is of the opposite polarity or something that magnet is attached to.I think an article appeared in an old popular electronics or science and mechanics magazine i came across about making an electromagnet for non-frrrous metals.It s...
by toejam
Mon Feb 18, 2002 6:51 am
Forum: General Discussion
Topic: Can you built this for me?
Replies: 3
Views: 1902

Re: Can you built this for me?

I'd use a 556 timer.One side can be a one shot and the other a monostable that is fed into mosfet in series with a 9 volt battery and the secondary of a 120 to 12v transformer good for 50 or so ma.Run it at about 60cps
tj
by toejam
Sun Feb 17, 2002 6:26 am
Forum: General Discussion
Topic: Electromagnetic Information ....
Replies: 16
Views: 5983

Re: Electromagnetic Information ....

are you trying to make a 12vto 50kv transformer or a magnet?The amont of power (joules wattever) you extract from a transformer is how much you put in - efficiency losses. How much time do you want to maintain how much power? that will give you an idea of how big everything must be.
tj
by toejam
Sun Feb 17, 2002 6:25 am
Forum: General Discussion
Topic: Electromagnetic Information ....
Replies: 16
Views: 5983

Re: Electromagnetic Information ....

are you trying to make a 12vto 50kv transformer or a magnet?The amont of power (joules wattever) you extract from a transformer is how much you put in - efficiency losses. How much time do you want to maintain how much power? that will give you an idea of how big everything must be.
tj
by toejam
Fri Feb 15, 2002 6:17 am
Forum: General Discussion
Topic: How to 6VDC to 12VDC (antique car)
Replies: 11
Views: 4030

Re: How to 6VDC to 12VDC (antique car)

What you need is a 6 to 12v d.c to dc convertor that can supply at least 3 amps.I'd type that into a seargh engine and go from there there are probabaly a few commercial units out there.
tj