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What is regulator 7806?
A 7806 would be a +6VDC 3 pin linear voltage regulator. Its partner the 7906 is -6VDC but has a totally different pinout.
How do you calculate the correct resistor value needed using 12vdc to run 6vdc circuit?
You need to drop 6 volts across the resistor. -- The resistor you need is 6/(the current in amps that your 6vdc device uses to operate) ohms. Example: If the device uses 1/2 Amp when it's running, then you need a 6/0.5 = 12-ohm resistor. -- And the power-dissipation rating of the resistor has to be at least 36/resistance watts. Example: For the 12-ohm resistor in the last example, it needs to be a (3-watt or more) resistor.
What AC adapter do you need for your Trek 2200 recumbent stationary bike?
UPEXX Plug In Class 2 Transformer Model No: AM-61000 Input: 120VAC 60Hz 15W Output: 6VDC 1000mA
Is the battery in an Sl500 battery positive or negative ground?
Batteries are neither positive nor negative ground. It is the circuit itself that determines the common ground. For example: If I have two circuits, one needing 6vdc negative ground and the other needing 6vdc positive ground, the battery would be installed the same way in both circuits (positive terminal on the battery to the positive connection in the circuit, regardless of whether the circuit is positive or negative ground). The reason for labeling the ground as Positive or Negative has more to do with how the circuit is wired up, than the actual voltage source. The explanation for that is beyond the scope of this answer.
How do you use 12 vdc to jump start 6vdc for a tractor?
not advisable unless you are badly stuck and if the tractor has no computers turn the key to the start position before you hook it up and disconnect immediately after it starts Ive seen it done but i am not advising it as i don't know what problems it could cause also don't jump it off something with any computers in it the thing to do is get a 6 volt charger
Can you use a 12V 300mA on a device that require 12V 1.0A?
You might be able to, but you probably *shouldn't*. 1 amp is equal to 1000 mA. The device requiring 1.0A is listing the maximum amount of amps that the device will need from it's power supply. If it only delivers 300 mA, there's a chance it may still run, but it could exceed the current needed to run the device (which could shorten it's life, or burn it out immediately in the worst case scenario). I currently am using a 12v 500mA supply with a light-based device requiring 12v 1A, and while it does work, the source device (an adapter) gets extremely hot and could be a fire hazard. Stick with the recommended matching specs, or if you can't match, even 12V2.0A would be safer and preferred.
Why is DC is not use in home?
because in dc current is direct current and it continously varies. so it may be possible that some instrument may be damaged. so to avoid this first we have to convert dc to ac. Actually in our home dc is provided.suppose you want to charge your mobile than you have to convert first dc current to ac current.AnswerAll homes are supplied with AC voltage. The reason for this is that the magnitude of an AC voltage is easily changed using a transformer, and it is easily changed into DC using a rectifier. Changing the voltage level of DC is far more complicated, as is changing it to AC.
I have a 1 watt FM transmitter.i want a suitable antenna for upto 3-4 kM range ..which antenna i will choose.and how to make that antnna?
hi, sorry for my english. for your 1 w fm transmitter to cover 3 to 4 km range. 1. choose a free and no noise frequency on your area Try (88.0 to 88.9mhz) exp. 2. make a dipole antenna correct measure for your frequency. 3. install your transmitter in water proof box and put it & the antenna on roof outside and your coaxial cable 1 foot max between the box and the antenna, you need from your room to the transmitter music signal and power cables. 4. ( optinal and not recommended ) if your transmitter take 6vdc to give you 1w connect it to 9vdc to give you 1.3w ( you have to protect your transistor output power & biger heat sink) .
How do you wire 6 batteries together to make 9 volts?
It depends on what you want to do with the batteries. They can be connected in series to give you a total of 12 VDC. In a series connection a jumper is required between battery one's negative post to battery number two's positive post. If you want to increase the amp hours delivered at 6VDC they can be connected in parallel. In a parallel connection two jumpers are required. Battery one's negative post to battery two's negative post. Likewise the same procedure with the positive posts.
Is there any difference between dc and ac bulb?
Answer Yes you can use a AC rated bulb on DC, When using an AC bulb on 110volt DC you would need to double the wattage of the bulb to get the same amount of light output. So if you need 50 watts of light you would need to use a 100 watt bulb on 110 volt DC. One benfit of using DC is the bulbs last longer! Hope this helps. It is important to understand that 110 volts AC is also referred to as "effective voltage" or "DC equivalent voltage". In reality, the true voltage at the wall outlet is anywhere from 311 to 340 volts peak to peak alternating current in the U.S. at 60 cycles per second. A cycle is a sine wave starting at zero volts at the short slot on the outlet swinging negative to approximately 160 volts negative in respect to neutral or ground then going to approximately 160 volts above ground or neutral 120 times per second. The 110 volts is derived by dividing the peak to peak voltage by two, then multiplying .707 root mean square, which equals the term 110 to 120 volts alternating current.AnswerThe original answer is incorrect. An incandescent lamp will work on a.c. or d.c. and will provide exactly the same power at the same voltage. This is because 110 V d.c. provides exactly the same heating effect as 110 V a.c.
Can a 3.7 volt battery charger be used to charge a 6 volt battery?
Short answer, no. Not so short answer, it depends on the battery's chemistry. In all cases, you're not going to charge it completely no matter the chemistry, but you might charge it anywhere from nothing to ~75% depending on the chemistry and the 6 volt charger's top voltage(It's not 6 volts! If it's a lead charger, you might expect a top voltage of ~6.8 volts). Also, you want to make sure the charger's amperage doesn't exceed the battery's charging current's ability or you might overheat the battery and destroy it. In a longer answer, it is possible to convert a 6 - 7 volt supply to 8-9 volts with a "boost up" converter but that's either going to require buying the device or making it yourself. Even if you we're to do that, you need to make sure the battery's chemistry's safe limits aren't exceeded. NiMH, for example, has a quick downtown in its voltage near the end of its charging, and if the charging isn't cut-off there, the battery will keep absorbing charge until it overheats and explodes. another comment: yes if it fits into the device normally though it would take a little longer to charge
