Recent content by TechTree

Hello, Just out of curiosity I disassembled an LED GU10 light to see what's inside and found, a rectifier, a few capacities, and a small transformer. It was working fine before, but when I took the plate that has all the LEDs soldered to it and tired to power it on my DC variable power supply it...

Thank you for all the replies, very informative! That's a very clever idea, I'm curious to try and set something up like that now. :wink:

Hello, I am trying to transmit radio signals across a distance of just under 1km to the receiver. The receiver is in line of sight with the transmitter. I just need to send the data in the most direct way possible, almost like shining a laser through the air. I was wondering what type of antenna...

Sorry if I made it unclear, but I replaced the device I was wanting to power with a much lower power device instead, hence 3.7v 80mA rather than the 5v 500mA device. The 3.7V device used to be battery powered and used a 80mAh battery and lasted for about an hour. If I use a power supply with...

Thanks for the replies! I have replaced the bluetooth device I'd like to power in parallel with the guitar amplifier with a device that consumes much less power, just 80mA now rather than 500mA. I'm guessing a device which uses that little power should suffice being powered by the amplifier's...

Hello, I have recently converted an old bluetooth speaker into a Aux input device for a guitar amplifier. You can see how I converted it here. So now I'm trying to power both the bluetooth device and the guitar amplifier using the original amplifier's power supply. Here is the power that each...

Thanks Dave, worked perfectly :)

Thanks for the reply! That makes sense, I'm pretty sure the input of the Aux port is designed to take weak signals as you mentioned. Would there be some way I could connect the bluetooth speaker output to the Aux input without it passing through the amplifier? What would happen if I passed the...

Hello, I have a guitar amplifier I'd like to convert into a bluetooth device. Using it's current power supply and allow it to receive a bluetooth input. I have a bluetooth speaker that I took the electrics from. The bluetooth speaker is digital, but when it outputs to the speaker it's an...

Hello, I've been splicing a HDMI cable which has 19 wires in total I've soldered all the data cables apart from the 5 shielding wires. I'm a little confused because as far as I know the wire shielding is meant to act as a faraday cadge to stop interference. But when I don't connect the shielding...

Hello, I'm trying to send binary data over the power lines to a microcontroller, which triggers a relay turning on a light. I was wondering what kind of device would I need to use to achieve this? And how would I connect it up to the microcontroller? I'm fairly new to this, so if someone could...

There are types of USB extension cables called "Active USB extension cables" which have a special signal booster chipset, which can go for about 10m. While it is still possible to extend USB 3.0 using signal boosters they come at a much greater price. Looks like I'm going to go with USB 2.0...

Hello, I've got two computers that are in separate rooms and I have placed plastic conduit through the small space above the ceiling. Which will have a USB data cable, an Ethernet network cable, and a HDMI cable inside. The conduit length is about 8m long. And I was wondering if this setup could...

Hello, So I've got a pet hamster which I'm trying to build an enclosure for. And so I was wondering what would be the most suitable type of plastic to use for the walls and floor. Obviously it's going to have the appropriate ventilation as the top and the front will be made entirely out of metal...

Yes, I'm going to try and use the gearbox motor to wrap the line around a fishing reel. Then use a pulley to lift the box. :wink: