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  1. donkey

    Stream Video

    at best your tv will detect stored media. to stream items you need a tv that is capable of streaming. having said that getting roku might work again. who knows
  2. donkey

    power station question

    So I have a related question.... lets say that I was doing something stupid like taking 2 inverters from solar setup..... they don't have a way to sync do they??? only the grid connect ones would I assume... Once again for knowledge not dumb enough to try unless there is an inverter that has...
  3. donkey

    power station question

    I don't know nothing....... that's why I ask questions lol
  4. donkey

    VHF Repeater system

    oh what make and model repeater you using? any chance of an upgrade? I know its a government run thing but tech for radios has come A LONG way. my favourite thing at work atm is our radio's have the option to make a "private" call to a certain other radio (if that has been added to contacts)...
  5. donkey

    VHF Repeater system

    I get to use these everyday. they are becoming more common place. the difference is I use a repeater not repair. every where I go they install these suckers and try to convince us to convert to digital only as most repeaters can only handle 1 analogue signal (apparently). last place I worked at...
  6. donkey

    power station question

    there is NO reason for this question other than I want to know. so I understand the basic of ac theory. a wavelength goes up and down this frequency or hz of the voltage. in Australia the difference is 240volts from top to bottom and changes 60 times per second (so I assume -120 to 120 and back...
  7. donkey

    torque question

    so a 200watt motor by 2 for each rear wheel should do and average backyard? I got a 150ah battery... not saying where from..... anyway going to use that so 12volt at leats say 40amps (allows for losses and 2 * 12volt *40amps is 480watts as opposed to 400 for the 2 motors) gives me about 4...
  8. donkey

    torque question

    http://www.ebay.com/itm/EZGO-36-Volt-Electric-DCS-PDS-Golf-Carts-8-4-Peak-HP-High-Speed-Admiral-Motor-/251461839915 so this motor is about right???
  9. donkey

    VHF Repeater system

    ok so the question is how to select from 2 power sources? you can use a double throw switch. on the back will be 3 terminals or a factor thereof. find the contact that is common plug that to your vhf receiver, then 1 to the battery and one to the power supply battery ------>...
  10. donkey

    torque question

    ok in regards to watts lets say I have a 480watt motor (easier for my maths) If I have 2 150ah 12volt batteries. that's 3600 watt hours right? so at 12 volt I get 7.5 hours which is the 3600 divide 480 at 24 volts I get 7.5 hours also the only difference I see is that the amps and volts change
  11. donkey

    torque question

    So I see some of these disability scooters are 400watts so using two 500watt motors should get me close to where I want right? also I am still at a loss on 2 things that someone has stated to me 1 500watts on 24volt is better than on 12volts.... I can't see why can you please enlighten me 2 AH I...
  12. donkey

    torque question

    evidence is stacking that this is possible now...... highly doubt that little scooter is a hoon mobile so would hope 2 500w 24vmotors can handle the job. (1each back tyre)
  13. donkey

    torque question

    ok so I just looked at a disability scooter online and the motor they use is 400watt........ so will a 500watt motor work? as Duke said it only has to be 84rpm, so most I see average 2500rpm... that has to be geared down by about 30 so torque or pushing power goes up by 30..... grrrrr. I am...
  14. donkey

    torque question

    oh and I used 2 motors to get that btw
  15. donkey

    torque question

    http://www.robotshop.com/blog/en/drive-motor-sizing-tool-9698 I went here and got the 2.1kw you gave I am just stumped on the maths
  16. donkey

    torque question

    isn't that 2.1nm? I wanted something in NM and your maths seems to be same for both nm and kw any chance I can get the equations to start figuring this out? I am getting horribly confused and would also like to learn lol so your first one says to get torque or newton metres its force multiplied...
  17. donkey

    How can we Improve EP in 2017?

    Hey Ian and crew. just recently I got a thread started about torque.... and when it comes to theory I suck majorly. so I went googling for all the equations. Having a thread with them together for things like people converting hp to watts, torque, resistance etc would be handy. having those...
  18. donkey

    torque question

    https://www.easycalculation.com/physics/classical-physics/force.php So I used that calculator to get force http://www.metric-conversions.org/speed/kilometers-per-hour-to-meters-per-second.htm I used that calculator to turn 5km/h into 1.388889m/s I knew weight was about 200kg so the top...
  19. donkey

    torque question

    https://en.wikipedia.org/wiki/Tesla_Model_S#Specifications I am thinking my maths is way off after reading that link. the car weighs 2 tonnes on average and needs 450nm torque. am assuming that 1/10th weight and smaller wheels will make it less
  20. donkey

    torque question

    I am hoping someone can tell me maths is way off up above because the highest torques I am finding are about 3nm
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