T&L Publications

You could use a series regulator.
First build a standard zener circuit to get a tiny 10mA of 31 volts
this has little noise and can be filtered if it becomes critical.

Try to have at all times at least 33V unregulated.
then when add a series regulator you can adjust it to exactly 30V

a higher voltage rating should not effect the performance. Your power supply starts at the wall and ends at the input of the components fed. If I understand you correctly. The last capacitor needs the correct farads to match the milliamp draw if it is not enough you could get weak dampened wave. The...

The TL750Mxx TI ldo regulators automotive family 8V is page 4 can be found here:
http://focus.ti.com/lit/ds/sgls312i/sgls312i.pdf

In an analog sense the RC function for frequency has range limits because unlike resistors capacitors have a volume charecteristic. So for freq 1k to 1M we need various sizes of uFarads. And So the best I can tell you is we dont have a smart capacitors. pic vs 8038 is a matter of adaptation to what ...

Switching has become popular again. Constructing a model using a PNP normally closed is of great value. a mechanical switch is also helpful in design and developing applications. I'm sure you have taken apart a switch and can see and smell what it is about. In the same sense taking the pnp in this d...

the fusion of metal where the powdered coating and a spray of molten material is normally concidered, however below the arc digs into the molten pool where a vortex exists, the walls of this inverted cone are melted while the swirling stream mixes and solidifies. the length of the arc controls the t...

you could develope a voltage divider using higher value resistors so you conserve power.
Then you do a voltage to frequency which is transmitted from onboard.
The recieved frequencies are converted to voltage.
you could recieve each frequency by switching in filters.
accuracy will not be a problem.

an equivalent circuit such as to simulate a crystal is somewhat same. As you may know oscillation occurs at very low current. An transformer used at low frequency might use a resistor in simulation as a means to throw impedance at a specific audio circuit. frequency and pulse are popular in switchin...

I used to laugh about people who had experienced unusual energy phenomena. :sad: This sort of discussion has cropped up in electronic circles before. usually ends taboo. While most strange encounters are never validated I have come to the conclusion that some people (once concidered crazy) are sensi...

its about collecting money, Not about safety.
I found a website to abolish redlight cameras.

http://www.petitiononline.com/nophoto/petition.html

I came across a few pos at sourceforge.net

you can see the screen shots here of one
http://sourceforge.net/project/screensh ... p_id=86088

also search "point of sale"

mushroom stop button

An Infrared beam is reflected back and amplified to milliamp scale. this information is compared to a table setup where distance is related the duration of tone. The duration of tone may be calibrated to sound every 2 seconds at 6 feet from an object. It can be said that the interval between beeps b...

My reply is to the original post.
an optical sensor that detects the presents of rising bubbles.

it is there but not for the average hobbiest
going from open source linux to windows would require programing skill

there is a softmodem type:
http://sourceforge.net/projects/lintad

and a hard fax modem type:
http://sourceforge.net/projects/vocp