Yes. Although the Roll-Up does get some power from the computer, the external power supply is needed to ensure a constant power source. This is especially true if you are using the digitizer with a laptop computer.

Yes. If the Roll-Up III connects via serial port, the external power supply is needed to ensure the digitizer has a constant power source. This is especially true if you are using the digitizer with a laptop computer. The power supply is not needed if the Roll-Up III connects via USB port.

No, the 810 and 820 series meters operate in using a "single ended supply" meaning you only need between 9 and 25 VDC to operate them. We sell very reasonably priced power supplies that accomplish this in a very economical manner.

A voltage regulator, aka a charge controller, is a device in a photovoltaic system which prevents over charging (aka 'cooking') batteries. Depending upon the sophistication of the unit, it may also prevent over-discharge of the batteries and reverse charging of the cells.

The main purpose of your power supply is to run your trains. To run your train your power supply must supply energy for your locomotive, smoke unit, sound system , and any lighted cars. You may also need power for accessories like switches, street lights, building and house lighting or any other accessories. Your TOTAL POWER REQUIREMENTS depends upon the number of locomotives or motors, and ALL OTHER items that require electricity. The length of the track is not a factor.

If you're using T-Tape, soaker dripline or Aquapore you will need a regulator. Read the individual product descriptions for pressure recommendations. If you're using pressure compensating emitters, Shrubblers® or misters and have normal pressure you may not need a regulator. If you are using sprayers, you may want to use a pressure regulator to bring the water pressure into the rated range of the sprayer, since they will generally put out more water at higher pressures.

In far and away the majority of R/C Rx applications a 6v NiMH pack provides the same faster servo speed and increased servo output power a 6v Nicad would without any of the twitches or jitters long associated with Nicad 6v systems. Nicads display a relatively high ‘surface voltage spike’ fresh off of a peak charge, and that’s what’s producing those un-nerving servo jitters.

a. Normally this not a problem as long as the motor operates within the speed and current limits set by the manufacturer. Since motor speed is proportional to the voltage across the motor leads, select a power supply voltage that could not cause a mechanical over-speed in the event of an amplifier malfunction or a runaway condition.

A voltage regulator functions as a voltage converter as well as a voltage stabilizer. A voltage stabilizer will stabilize the electricity to a fixed current. VC model transformers come with a European-to-American plug adapter. You can find additional types of plug adapters on our site.

The torque produced by the motor is affected by changes in power supply voltage. The torque the motor produces is proportional to roughly twice the power supply voltage. For example, if the voltage of a motor rated at 115 VAC fluctuates between 103.5 VAC (90%) and 126.5 VAC (110%), the torque produced will vary between 80% and 120%. When using motors under large power voltage fluctuations, remember that the torque produced will vary, so select a motor that provides a sufficient margin.

For the BayStack 600 series and the Netwave AirSurfer Plus APs the power supply output specification is: 6V DC, 1A, center pin +ive. For the Xircom CNW and Netwave AirSurfer Access Points the power supply output specification is: 12V DC, 1000mA, center pin +ive.

Check out the ICL7660, 7662, LT1026, voltage converters. They can double, produce negative voltages etc... from a single battery.

The supply voltage may be higher or lower than the voltage required by the load. However, the frequency of the two may not differ. If your load ratings are not expressed in KVA, use the load voltage and amperage to determine the KVA. Once you have a KVA rating, then select a transformer from the charts in the appropriate section of this catalog by matching the primary and secondary voltages determined above.

Would have been a lot more if not for all the developers, programmers, skinners, electrical gadget makers and posters/members with the needed advice and help on these forums. VIA MII 10000|WD160 GB|Audigy2 NX||512Ram|Orinoco Gold Wifi|Motorized In Dash lilli|GPS Rikaline 6010|Opus 150|Sirius Radio|Nvidia FX5200 PCI|

Most of our food is bought fresh in Bintan and taken out to Pangkil on the morning of your trip. To plan menus and organise the land and launch transport we ideally need to know the size of your group and your ferry time(s) a week before your trip. Small changes to the number of guests closer to your date of departure are fine. In this case, if she is planning on being on the same ferry as the rest of you, you can let us know on the Friday.