Search found 3680 matches
- Mon Jan 21, 2002 4:06 pm
- Forum: General Discussion
- Topic: Why doesn't French phone ring in the US?
- Replies: 6
- Views: 4714
Re: Why doesn't French phone ring in the US?
I Don't know french phones, But the ringer Equivalence may be different, the frequency response may be different, [20, 30, 40 Hz?] the voltage requirements may be different, DC VS AC? + or - ? or just that it requires that third wire to be separate for the ring?
- Sun Jan 20, 2002 2:58 pm
- Forum: General Discussion
- Topic: Test Probe Wire
- Replies: 8
- Views: 5084
Re: Test Probe Wire
Try Pomona Industries? Pomona Calif. On the web.<p>http://www.pomonaelectronics.com/html/national_us.htm
- Sat Jan 19, 2002 10:24 am
- Forum: General Discussion
- Topic: TV Flyback Transformers
- Replies: 7
- Views: 5378
Re: TV Flyback Transformers
This is a guide line only but with experience and practice it should be a sound guide line to follow. There are many factors that affect the arcing over of a resistor. Humidity, body oils, contaminants, and others. Heat shrink and epoxy as well as high voltage putty will increase the allowable volta...
- Fri Jan 18, 2002 3:56 pm
- Forum: General Discussion
- Topic: Strobes and Sparks---TJ Byers
- Replies: 1
- Views: 2176
Re: Strobes and Sparks---TJ Byers
Technically you cant. The strobe unit stores up a large cap into a value of around 500 volts, several hundred micro farads and then applies this voltage / current across a "Gas Discharge Gap" [xenon tube] that wont light at this low voltage on its own, and through the use a micro sized ste...
- Fri Jan 18, 2002 3:36 pm
- Forum: General Discussion
- Topic: TV Flyback Transformers
- Replies: 7
- Views: 5378
Re: TV Flyback Transformers
Although the fly back transformer produces a high voltage, and although its not deadly to most healthy people, it is prudent to be aware of its danger and not come in contact with this power. After the fly back If or when using a double or tippler, this voltage becomes very unhealthy to even the hea...
- Fri Jan 18, 2002 11:09 am
- Forum: General Discussion
- Topic: TV Flyback Transformers
- Replies: 7
- Views: 5378
Re: TV Flyback Transformers
To check high voltages you need to make a voltage divider. Take a 10 meg [9 meg actual] resistor and one meg resistor and solder them together. Make these resistors a dead short across the voltage and tap across the one meg resistor[bridge] for a one tenth [apx] reading, or one equals ten. You can d...
- Thu Jan 17, 2002 4:34 pm
- Forum: General Discussion
- Topic: Cell phone boosters
- Replies: 9
- Views: 5422
Re: Cell phone boosters
As I said in my post, its called Harmonics, and the tank circuit is the heart of all radios. The real joke is placing any cell phone against your head, and trying to fry your brains a little at a time. Like Jolly said, they work on others radios, they MAY work on Cell Radios also. I have no reason t...
- Thu Jan 17, 2002 2:37 pm
- Forum: General Discussion
- Topic: Cell phone boosters
- Replies: 9
- Views: 5422
Re: Cell phone boosters
I doubt they could sell them [continue] if they didnt work some what? Are they worth the 20 bucks?No, they cost a few pennies to make. Buy one or sketch one, and silk screen it and reproduce it for almost nothing.
- Thu Jan 17, 2002 10:41 am
- Forum: General Discussion
- Topic: Cell phone boosters
- Replies: 9
- Views: 5422
Re: Cell phone boosters
Do they work? I Haven't ever used a hand held cell phone, and I never will. The principal or theory is called Harmonic Capacitance. The nearest I would define it as being would be a "Tank" circuit that boosts power by creating a "Fly wheel" like effect using electrons in harmonics.
- Wed Jan 16, 2002 1:59 pm
- Forum: General Discussion
- Topic: Cordless Phone Linear
- Replies: 26
- Views: 16330
Re: Cordless Phone Linear
You cant, and Terra Htz? I think you mean Gig. A couple of watts is what sets the white vans running. They dont wait for complaints, and like Afganistan, They monitor everything. Hit and Run and you'll get away with it. They still wait on over passes and pick off the clone phones, every day of the y...
- Wed Jan 16, 2002 1:50 pm
- Forum: General Discussion
- Topic: Desktop PC plugged into a car battery!
- Replies: 7
- Views: 5511
Re: Desktop PC plugged into a car battery!
Also, thousand dollar convertors were in the last century!!! Circa 1990? You can purchase them now for under one hundred bucks, [even $40!] including pure sine wave. You can also hook up a one to one saturation core transformer for sine wave clean up and voltage maintenance. They cost around 60 buck...
- Mon Jan 14, 2002 10:35 pm
- Forum: General Discussion
- Topic: Cordless Phone Linear
- Replies: 26
- Views: 16330
Re: Cordless Phone Linear
Id rather start a betting pool, guessing on how long before the two white vans park out side your home? I push the gray all the way to black, many times over, and got away with it, but Im guessing four hours in your case? Just a hunch? Chill out your self!
- Mon Jan 14, 2002 12:46 pm
- Forum: General Discussion
- Topic: Telephone system question
- Replies: 4
- Views: 4015
Re: Telephone system question
Part # 62-1388 Radio shack's "Understanding Telephone Electronics". <p>When the voltage drops from around 48 volts "ON HOOK" to around 5 Volts "OFF HOOK" that is how they know.
- Mon Jan 14, 2002 8:30 am
- Forum: General Discussion
- Topic: Cordless Phone Linear
- Replies: 26
- Views: 16330
Re: Cordless Phone Linear
Ever heard of the FCC, everything you want is illegal. Good luck!
- Sun Jan 13, 2002 5:16 pm
- Forum: General Discussion
- Topic: Hooking up two phones
- Replies: 7
- Views: 4877
Re: Hooking up two phones
I'll dig out the book and scan a few pages.