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Analog Timer
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ProAccurate Thermometer
Sale Price: $19.99
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CDN Proaccurate Stainless Digital Thermometer with Quick tip rapid response, waterproof and dishwasher safe
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Honeywell RPLS540A ECONOSwitch Programmable Timer Switch, White
List Price: $44.99
Sale Price: $29.23
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The Honeywell's RPLS540A1002/U allows you to take complete control over your lights. Its three modes (manual, automatic, and random) help you conserve electricity while adding a level of safety and security to your home. This Honeywell ECONOSwitch programmable timer switch has both the flexibility of 7-day programming and the convenience of automatic sunrise / sunset activation. This unit works with Incandescent, halogen and fluorescent lighting (compatible with electronic ballasts). Has a large white backlit display with a night light mode option for easy reading in dark areas with confirmation LED for at-a-glance load status (on or off). Random mode activates lights randomly to simulate a presence when away from home. Easy intuitive 3 button interface with no door to open. Automatic daylight savings - no need to reprogram.
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Intermatic TN311C 120 Volt Heavy Duty Grounded Timer
List Price: $19.49
Sale Price: $7.90
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Plug In, Heavy Duty Timer, 3 On/Off Every 23 Hours, Manual Override On/Off Switch, 3 Wire Grounded Plug & Receptacle, 1 HP 12FLA, 72 LRA Maximum Motor Load, 15A, 1875W, 125V.
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GE 11088 Wood Clock Night Light
List Price: $24.99
Sale Price: $11.04
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This wall clock has a glowing face that make it easy to tell time in the dark. Battery powered, this clock is always on and keeps time when unplugged or during a power loss. Plugs into standard outlet.
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Units Of Time
List Price: $24.99
Sale Price: $24.99
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Sam and Amber find an old-fashioned clock in a deserted space station. With Numberella's help, they figure out the relationships between seconds, minutes, and hours.This product is manufactured on demand using DVD-R recordable media. Amazon.com's standard return policy will apply.
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Timex Personal Trainer Heart Rate Monitor
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Improve your health, track your intensity and help meet your weight loss goals by being in the know with a Timex HRM. The Timex Personal Trainer and Easy Trainer heart rate monitors deliver essential fitness management data in simple-to-operate watches.HEART RATE FEATURES:- Target Zone- Preset your desired heart rate exercise zone; Alarm notification when you are not in zone- Time in Zones- Spent within your selected heart rate target zone- %-of-Max Heart Rate Display or BPM- Recovery Heart Rate Timer- Measure your heart rate after a timed recovery during or after your workout- Automatic Activity Timer- Elapsed workout time is automatically recorded- Workout Review- Recalls activity time, time-in-zone, average and peak heart rates, and calories- Analog Heart Rate Sensor- Works with heart rate interactive treadmills and gym equipment- Owner-Replaceable Battery- Water-resistant hatch in heart rate sensor allows for a quick and easy battery changeWATCH FEATURES:- 12/24 hour time- Month/day/date- Water-resistance to 30m (Heart rate features not available underwater)- Activate INDIGLO night-light with a press of the button
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Stethoscope watch and Pulse timer ~ Nurse - Nursing
Sale Price: $8.16
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Brand New, First Quality, Prestige Medical Pulsemate watch. Stethoscope watch and pulse timer. Attaches to stethoscope tubing. Displays date and time. Features include, Alarm clock and count up/down timer. Battery operated. (stethoscope not included)
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Zinwell ZAT-970A Digital to Analog TV Converter Box (for Antenna Use)
List Price: $49.99
Sale Price: $38.77
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This converter box comes with an on screen program guide that provides show times and descriptions. This TV converter box also comes with scan for all channel tuning and adjustable closed captioning. Te key feature on this digital TV converter box is that it does come with analog pass-through. This means that you will still be able to pick up lower power analog television stations.
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My Tot Clock: Helping Small Children Sleep Better...So Parents Can Too!
List Price: $49.95
Sale Price: $59.95
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My Tot Clock is the ONLY all-in-one sleep clock, alarm clock, nightlight, timeout timer, and activity timer for tiny tots and their very sleepy parents! The magic of My Tot Clock is that it changes colors to teach little ones when it's time to sleep (blue light) and when it's okay to wake (yellow light). Parents set the routine! My Tot Clock, with its child-friendly analog clock display, also plays bedtime stories, lullabies, fun wake-up music, and even white noise to make the traditionally stressful bedtime and morning routines more enjoyable. No more negotiating before bedtime!
My Tot Clock also includes a light blue light for nap time or quiet play time, a red light when a little timeout is needed, and a green light for any positive timed activity like potty training and picking up toys. Managing important tot time has never been easier!
My Tot Clock comes with the "Welcome To Children's Dreamland" Tot Clock Treasure, the "Night Sky" Faceplate, and AC Adapter. Measures 9" x 7.5" x 2.25".
Additional Tot Clock Treasures and Faceplates sold separately on Amazon.com.
Order TODAY to find out why My Tot Clock is loved by tiny tots and their very sleepy parents! Guaranteed better sleep or your money back!
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Royal Crest Analog Chess Clock/Timer by Wood Expressions
List Price: $48.50
Sale Price: $21.95
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This Quartz Chess Clock is our most economical analog chess clock. This is a perfect chess clock for students, schools or clubs who want an easy to operate timer with great visual aspects. It has adjustable hands that allow for a quick setup for competitive/ tournament games. This clock keeps accurate time, comes with a second hand, has a sturdy housing, and is powered by one AA battery. There is an on/ off switch on the back and the battery is included.
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How Can Digital Beat Analog?
I was a student of electronics in the 80s. Digital electronics sounded like a fancy word then.
In analog you could have almost infinite number of values, but digital had ones and zeros. And binary transmission means a bunch of zeros and ones
For instance in analog transmission, if I wanted to transmit the number 254, I would simply send it as 3 digits, a two and a five and a four. But in digital, specifically binary transmission, it would have to be 8 digits, i.e. 11111110, i.e., a series of seven ones and then followed by one zero.
I have been talking about binary transmission when talking about digital, because they are not the same thing. Binary transmission is just one type of digital transmission. There can be many others. For instance there can be trinary, which would transmit zeroes, ones, and twos. You get the idea.
Though there were initial doubts, there is now no doubt that digital electronics is the winner. This is because, in creating electronic circuits, you can very easily create switching circuits that will have a high voltage, i.e., a one and a low voltage, i.e., a zero.
So, back to the original question. Why is analog not as good as digital? Are we missing something? Did out engineering teachers miss out on teaching us about some important part of the deal here? For instance, could it be about economics and not about electronics at all?
We queried our teachers. Though they all knew that digital was obsolete, there were few who could give us more than standard party-lines. Of course there were the old-timers who stood staunchly behind the power electronics based on the analog paradigm.
It was the belief of these old-timers that the real electronics was the power electronics with vacuum tubes and a whole lot of heat. They told me of huge factories and industrial units that ran on these power electronics.
They pooh-poohed the latest fads revolving around digital electronics as a fad that was not worth more than making doorbells or kids projects. Probably that is all that they were exposed to in the name of digital electronics.
Now that two decades have passed, we have answered many of our early questions, but we have also created new and tougher questions.
Amazingly enough it was the printed circuit board that gave digital its real boost. Being able to print a circuit instead of wiring it is the miracle that supports digital electronics.
About the Author
Are you interested in locating Obsolete Electronic Parts? Why not visit our Integrated Circuits Catalog. If you are into electronics, you will want to see our List of Electronic Components.
how do you use thermostats and timer?
we have an old boiler with an analogue timer and have installed thermostatic valves on the radiators. do you use the timer and the thermostats at the same time or do you just leave the boiler on all the time and just control the thermostats?
thanks for your help!
also wondering if you could just use the timer to switch the boiler off for the night and leave the thermostats on the same temperature.
Set the rad valves to suit each individual room when you have had the heating on a couple of hours and all radiators are hot. Set the timer for when you want the heating on and when you want it off. If you leave the boiler on all the time and for instance the rad valves were not calling for heat your boiler would 'short cycle' all the time and would wear itself out and cost money on wasted gas.
Arasan Chip Systems Introduces Ethernet Technology for Real-Time Environments at Ethernet Technology Summit 2010
SAN JOSE, Calif. -- Arasan Chip Systems, Inc. , a leading provider of Total IP Solutions, announced that it is presenting a paper titled -- "Expand Ethernet to Real-Time Environments", at the Ethernet Technology Summit to be held between February 24-25, 2010 in San Jose, California.
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April 22, 2008 at 4:53 am, filed under
Vintage Computers and tagged
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