I have three laser diodes connected in series.
They require 2.5V and 120-130mA to operate.
I have 8 available batteries, each 1.2V and 900mA.
I want to create a circuit using these batteries and laser diodes, without overloading the laser diodes, so resistors need to be added to the circuit.
What circuit do I require for this to work? Please include resistor
values
Thank you!

/——-BAT———DIO–DIO–DIO—/
/
/———[ R? ]————————/

Should include:

lamps, switches, a battery, small motor, variable resistor

can anyone help?

I want to run an electronic device that is supplied with a power supply delivering 9vAC @ 3.2 Amps. This device is the fourth in a long generation of similar devices who have used 9vAC @ 700Ma. I was told that the new device has higher output only to supply one new feature (which isn’t even installed on my device) and that using the lower current will be more than adequate to power the LCD screen and other things which are essentially the same as the older models.

Does this sound accurate to you guys?

P.S. the device is an alarm system, with only basic components, just a small circuit board, backup battery, and an LCD screen.

Thanks
The problem is that the new 3.2A transformer doesn’t support X10 technology yet, and GE may not be able to get a 3.2A transformer that is compatible with X10 through the UL approval process anytime soon.

There are transformers with 700ma available for the previous models that already have X10 compatible transformers.

I have a house full of X10 devices and want the newer alarm. Heard it would work from some alarm tech who said he has done it… but wanted to check other sources first.

I am hoping to withere create one or buy one to be able to generate up to 100 volts at 1amps.

I want to make a wireless remote where I press a botton on one end and it completes a circuit on the other. It only needs to work up to about 15 ft. I have nearly no knowledge of electronic or infrared technology. Where do I start?

g it with clear drying varnish?

25/200

1/200

1/5000

16/25

I have just started with bread board electronic circuit, which is nails on a wood board connected by wires and Components. I have made a flasher which is just 2 flashing LE-D’s, But is there a free program to Design and test a virtual circuit board? were you physicaly place components andConnectt them to see the results? I do have a physics program at school that does it sort what im talking bout its called crocodilee physicss" is there a free circuit board designin softwar spicilyly made for electronics, were you make and test you creationsn virtually lbeforeo actually making them in real life?

apart form tat iam also about to purchase an 32 in lcd t.v. They say pc connectivity is available what does tat mean?