electricbuy

You need to know what you need something for before you can buy it. If its to get the most precise clock then temperature (pressure) compensation of the pendulum is a must. This would lead you down the path of the invar rod.
The best clock is the simplest, one that does not get disturbed. You need to impulse energy to overcome loses though. This paradox has faced all time-keepers. The Shortts free pendulum seen as the nearest to this ideal situation.
Have you considered making your own design, why stop the creative process and make your own clock? They are simple to produce and it will save you the expense of buying one? Press on red to continue.

What are we trying to get across in these pages? It is that we should consider the purpose of a purchase and finding a good purchase. Please don’t be offended and if you are think why:

1) Want to clog the house up with another clock.
2) Need to explore a different type of clock and perhaps make comparisons.
3) Simply your first clock and starting out on the electric clock journey.
4) Need to re-instate a traditional master clock systems.
5)) Need parts to keep an existing system going.
6) Might need to drive a large dial clock outside.
7) Might want to synchronise time in your building.
8) Simply cant think of anything better than putting one on the wall and get going.
9) Fed up decorating and feel easier to fill the walls with clocks, do note that pendulums close together can cause problems!
10) Need a precise clock for scientific readings and or instrument.
11) Hoping one day if you fill all the space up the value will go up & can retire.
12) Hoping to starve the market by buying all of them, followed by world domination.

What ever the purpose, project or mission think about what you want and what you want it for. This will focus you, make you become selective and onAmission. If you join the club you might find a mission that also forms a greater cause in the community. We are soon to launch the Race4Time project, and other international ones will follow. There is certainly nothing better than having one of these fine clocks and joining in with others, the experiments are endless.

From the purpose you should be able to determine the best type;
1) Self winders USA/ German. This is either through a spring or a weight. With the former, it uses a linear portion of the springs characteristic, with the weight this is defined by gravity. This improves the constant drive we need for good time keeping but generally impulsed at 0.5 or second intervals.

2) UK gravity arm master clocks. Here a standard weight falls on the arm of the pendulum and the electric coil resets it.

3) Hip-toggle. If the arc of the pendulum goes below a given value, the clock is magnetically impulsed.