basic relay

ANY Timer Rrelay
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American Dj LC-8-SP Relay Pack For Copliot Basic Dimmer & Relay Power Pack

  • American DJ 8 Channel Power Pack for Light Copilot
  • 8-channel power pack has 8 dual AC outlets (16 total) with a 15-amp capacity
  • Requires American DJ Light-Copilot controller and connecting cables

American DJ 8 Channel Power Pack for Light Copilot has a 8-channel power pack has 8 dual AC outlets (16 total) with a 15-amp capacity and requires a American DJ Light-Copilot controller and connecting cables.

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Price: $99.95


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Brian G asked How are modern cellphones the technological descendants of the old military field phones?

I read once that the basic technology for the modern cellphone actually was invented decades ago but the patents expired before the inventor could make any money. Apparently cellphones are the great-grandchildren of that phone-in-a-box you always saw Cpl. Radar using on the MASH television show. My question is how was the technology adapted? How did something from the 1940s become a 21st century necessity?

And got the following answer:

You haven't made the right connection. Cell phone and satellite phones are different technology. The satellite phone uses one satellite as a relay just like the satellite TV broadcasts that were first seen on the news in the 1960s. Cell Phones are simple radios. The patent you are talking about was U.S. patent, Patent Number 887357 for a wireless telephone, issued 1908 to Nathan B. Stubblefield of Murray, Kentucky for a wireless phone to be used in caves and mines. It wasn't until the 1980s that the first cell phone networks using that old technology were established. It took a few other key developments and those were patented as well to finally create the cell phone we know today. The Bell Labs created the "hand off" feature that allows you to switch between cell phone towers and Motorola is widely considered to be the inventor of the first practical mobile phone for handheld use in a non-vehicle setting. The cell phone does not equal the phone that Radar used on MASH; that was an US Army Field Phone and it is connected by wires through a switchboard just like your land line phone. The Army Filed Phone is portable, but otherwise identical. Cell Phones are actually small radios. The technology that makes a cell phone work is the combination of the phone/short range radios and the towers. A cell phone network is a series of towers that receive short range radio signals generated by cell phones. They then send those signals into the standard telephone system and if another cell phone is being called then the call is transmitted by a cell phone tower to the receiving cell phone. The military did have radios and those radios are the ancestors of the cell phone. The difference between the two is the radio frequencies used. The Federal Communication Commission reserves certain radio frequencies for specific traffic. Airports, police, fire departments, the military and cell phones all have their own reserved frequencies that they use. They also have to share the radio spectrum with standard radio signals and TV signals who have their own reserved frequencies. If you took a 1950s era phone and pulled all the wires out of the ground while keeping the phone lines connected then you would have the exact same system that Radar O'Riley used on the TV series MASH. When he turns the crank he is turning a generator that sends a signal down the line to ring the phone on the other end. When he talked with Sparky he was talking with the switchboard operator who would plug his line into another line to talk with I-Corp, Japan, or even stateside. It was a standard telephone system, not a cell phone. According to Wikipedia: http://en.wikipedia.org/wiki/Cell_phone "There is one U.S. patent, Patent Number 887357 for a wireless telephone, issued 1908 to Nathan B. Stubblefield of Murray, Kentucky. He applied this to "cave radio" telephones and not directly to cellular telephony as we know it today. However, the introduction of cells for mobile phone base stations, invented in 1947 by Bell Labs engineers at AT&T, was further developed by Bell Labs during the 1960s. Radiophones have a long and varied history going back to Reginald Fessenden's invention and shore-to-ship demonstration of radio telephony, through the Second World War with military use of radio telephony links and civil services in the 1950s, while hand-held cellular radio devices have been available since 1983. Due to their low establishment costs and rapid deployment, mobile phone networks have since spread rapidly throughout the world, outstripping the growth of fixed telephony." For more like the Bell patents read the rest of the article. PS. Sparky was a common nickname given to the person who worked in the Radio Shack. Radar was given his nickname because he always was the first one to know when the choppers were coming in carrying wounded. It may have been good ears or it may have been a 6th sense the original movie and TV series never explored that. Also Radar was the only cast member to go from the movie to the TV series.


The basic relay operate really effectively with distinctive applications that happen to be particular to power distribution and protection. The relays come with wide adjustment ranges using a scale that is definitely easy to study either in three or four digits based on the model. These basic relay help in rising the flexibility of the applications, lessen the general energy and maintenance charges. There are actually relays that are utilized for general purposes which come in trusted styles with rapid replacement options. And you will discover models that happen to be used for industrial applications and heavier duty applications that operate on large loads. These items are created to meet the lifetime industrial control demands with the applications.
Their latest merchandise would be the Time counter, Timer Delay, basic relay, Rapid Connect Couplings, Electronic Motor Couplings, Aluminum Couplings, Morse Couplings and numerous other individuals. The web page presents a detailed description of every model in a variety of categories of basic relay couplings and sensors. These products are exceptionally beneficial for high-risk applications. The basic relay are also readily available with attributes like a number of timing ranges and functions. The enterprise is at present looking for agents and dealers who can market and sell their factory created merchandise. They are often on a lookout for building new and more dependable merchandise based on the requirements and needs on the market.

Dynapower TC-300R8A 300W ROHS Dual AC Inlet EPS 12V Mini Redundant Power Supply

Dynapower TC-300R8A 300W ROHS Dual AC Inlet EPS 12V Mini Redundant Power Supply

Dynapower TC-300R8A 300W ROHS Dual AC Inlet EPS 12V Mini Redundant Power Supply - Manufacturer: Dynapower - Mfg Part Number: TC-300R8A - Condition: New - Packaging: Retail


Dynapower TC-700RVN2 700W ROHS Dual AC Inlet EPS 12V Redundant Power Supply

Dynapower TC-700RVN2 700W ROHS Dual AC Inlet EPS 12V Redundant Power Supply

Dynapower TC-700RVN2 700W ROHS Dual AC Inlet EPS 12V Redundant Power Supply - Manufacturer: Dynapower - Mfg Part Number: TC-700RVN2 - Condition: New - Packaging: Retail


Dynapower TC-650RVN2 650W ROHS Dual AC Inlet EPS 12V Redundant Power Supply

Dynapower TC-650RVN2 650W ROHS Dual AC Inlet EPS 12V Redundant Power Supply

Dynapower TC-650RVN2 650W ROHS Dual AC Inlet EPS 12V Redundant Power Supply - Manufacturer: Dynapower - Mfg Part Number: TC-650RVN2 - Condition: New - Packaging: Retail


Dynapower TC-1U40-TH 1U 400W ROHS w/ Thermal Control EPS 12V Short Depth Power Supply

Dynapower TC-1U40-TH 1U 400W ROHS w/ Thermal Control EPS 12V Short Depth Power Supply

Dynapower TC-1U40-TH 1U 400W ROHS w/ Thermal Control EPS 12V Short Depth Power Supply - Manufacturer: Dynapower - Mfg Part Number: TC-1U40-TH - Condition: New - Packaging: Retail


Rosewill CAPSTONE-650 650W ATX EPS 12V Active PFC 80PLUS 140mm Silent Fan Power Supply

Rosewill CAPSTONE-650 650W ATX EPS 12V Active PFC 80PLUS 140mm Silent Fan Power Supply

Rosewill CAPSTONE-650 650W ATX EPS 12V Active PFC 80PLUS 140mm Silent Fan Power Supply - Manufacturer: Rosewill - Mfg Part Number: CAPSTONE-650 - Condition: New - Packaging: Retail


Dynapower TC-2U40-TH 2U 400W ROHS with Thermal Control EPS 12V Short Depth Power Supply

Dynapower TC-2U40-TH 2U 400W ROHS with Thermal Control EPS 12V Short Depth Power Supply

Dynapower TC-2U40-TH 2U 400W ROHS with Thermal Control EPS 12V Short Depth Power Supply - Manufacturer: Dynapower - Mfg Part Number: TC-2U40-TH - Condition: New - Packaging: Retail


Dynapower TC-2U35-TH 2U 350W ROHS with Thermal Control EPS 12V Short Depth Power Supply

Dynapower TC-2U35-TH 2U 350W ROHS with Thermal Control EPS 12V Short Depth Power Supply

Dynapower TC-2U35-TH 2U 350W ROHS with Thermal Control EPS 12V Short Depth Power Supply - Manufacturer: Dynapower - Mfg Part Number: TC-2U35-TH - Condition: New - Packaging: Retail


Dynapower TC-1U35-TH 1U 350W ROHS w/ Thermal Control EPS 12V Short Depth Power Supply

Dynapower TC-1U35-TH 1U 350W ROHS w/ Thermal Control EPS 12V Short Depth Power Supply

Dynapower TC-1U35-TH 1U 350W ROHS w/ Thermal Control EPS 12V Short Depth Power Supply - Manufacturer: Dynapower - Mfg Part Number: TC-1U35-TH - Condition: New - Packaging: Retail


Dynapower TC-400R2U 2U 400W Active PFC ROHS EPS 12V Redundant Power Supply

Dynapower TC-400R2U 2U 400W Active PFC ROHS EPS 12V Redundant Power Supply

Dynapower TC-400R2U 2U 400W Active PFC ROHS EPS 12V Redundant Power Supply - Manufacturer: Dynapower - Mfg Part Number: TC-400R2U - Condition: New - Packaging: Retail


Dynapower TC-500R8A 500W ROHS Dual AC Inlet EPS 12V Mini Redundant Power Supply

Dynapower TC-500R8A 500W ROHS Dual AC Inlet EPS 12V Mini Redundant Power Supply

Dynapower TC-500R8A 500W ROHS Dual AC Inlet EPS 12V Mini Redundant Power Supply - Manufacturer: Dynapower - Mfg Part Number: TC-500R8A - Condition: New - Packaging: Retail


Dynapower TC-400R8A 400W ROHS Dual AC Inlet EPS 12V Mini Redundant Power Supply

Dynapower TC-400R8A 400W ROHS Dual AC Inlet EPS 12V Mini Redundant Power Supply

Dynapower TC-400R8A 400W ROHS Dual AC Inlet EPS 12V Mini Redundant Power Supply - Manufacturer: Dynapower - Mfg Part Number: TC-400R8A - Condition: New - Packaging: Retail


Dynapower TC-400R8 400W ROHS Single AC Inlet EPS 12V Mini Redundant Power Supply

Dynapower TC-400R8 400W ROHS Single AC Inlet EPS 12V Mini Redundant Power Supply

Dynapower TC-400R8 400W ROHS Single AC Inlet EPS 12V Mini Redundant Power Supply - Manufacturer: Dynapower - Mfg Part Number: TC-400R8 - Condition: New - Packaging: Retail


Dynapower SS-2U60EL 2U 600W Active PFC EPS 12V Short Depth 80 Plus Bronze Certified Server Power Supply

Dynapower SS-2U60EL 2U 600W Active PFC EPS 12V Short Depth 80 Plus Bronze Certified Server Power Supply

Dynapower SS-2U60EL 2U 600W Active PFC EPS 12V Short Depth 80 Plus Bronze Certified Server Power Supply - Manufacturer: Dynapower - Mfg Part Number: SS-2U60EL - Condition: New - Packaging: Retail


SPI R-FSP1000-50TGM 10000W ATX EPS 24PIN 13CM BB FAN APFC 10*SATA PCI-E 80Plus Power Supply

SPI R-FSP1000-50TGM 10000W ATX EPS 24PIN 13CM BB FAN APFC 10*SATA PCI-E 80Plus Power Supply

SPI R-FSP1000-50TGM 10000W ATX EPS 24PIN 13CM BB FAN APFC 10*SATA PCI-E 80Plus Power Supply - Manufacturer: SPI - Mfg Part Number: R-FSP1000-50TGM - Condition: New - Packaging: Retail


XIGMATEK NRP-HC1001 1000w ATX 12v v2.2 / eps 12v v2.92 80 plus & sli ready modularized w/ active pfc power supply

XIGMATEK NRP-HC1001 1000w ATX 12v v2.2 / eps 12v v2.92 80 plus & sli ready modularized w/ active pfc power supply

XIGMATEK NRP-HC1001 1000w ATX 12v v2.2 / eps 12v v2.92 80 plus & sli ready modularized w/ active pfc power supply - Manufacturer: Xigmatek - Mfg Part Number: NRP-HC1001 - Condition: New - Packaging: Retail


Dynapower SS-1U60EL 1U 600W Active PFC EPS 12V Short Depth 80Plus Bronze Certified Server Power Supply

Dynapower SS-1U60EL 1U 600W Active PFC EPS 12V Short Depth 80Plus Bronze Certified Server Power Supply

Dynapower SS-1U60EL 1U 600W Active PFC EPS 12V Short Depth 80Plus Bronze Certified Server Power Supply - Manufacturer: Dynapower - Mfg Part Number: SS-1U60EL - Condition: New - Packaging: Retail


Dynapower SS-2U50ES 2U 500W Active PFC EPS 12V Short Depth 80 Plus Bronze Certified Server Power Supply

Dynapower SS-2U50ES 2U 500W Active PFC EPS 12V Short Depth 80 Plus Bronze Certified Server Power Supply

Dynapower SS-2U50ES 2U 500W Active PFC EPS 12V Short Depth 80 Plus Bronze Certified Server Power Supply - Manufacturer: Dynapower - Mfg Part Number: SS-2U50ES - Condition: New - Packaging: Retail


Dynapower SS-1U52ES 1U 500W Active PFC EPS 12V Short Depth 80 Plus Bronze Certified Server Power Supply

Dynapower SS-1U52ES 1U 500W Active PFC EPS 12V Short Depth 80 Plus Bronze Certified Server Power Supply

Dynapower SS-1U52ES 1U 500W Active PFC EPS 12V Short Depth 80 Plus Bronze Certified Server Power Supply - Manufacturer: Dynapower - Mfg Part Number: SS-1U52ES - Condition: New - Packaging: Retail


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