DIY CIRCUITS ELECTRONICS

here is a project i made some time ago and currently using it for electronics inspection. if you're interested about more projects like this please subscribe to my channel

today in this video i'm testing a low dropout voltage regulator bought from e-bay.  the AMS1117-5 is a fixed voltage low dropout regulator and according to the datasheet can provide 5 volts output at 1amp max .the operating voltage is up to 15volts max. watch the video and please comment: is it worth buying or not? schematics of the circuit under test.

  in this episode im testing various cheap voltmeters to see how accurate they are with a '' High Precision Voltage Reference Module '' bought from e-bay and based on AD584 ic by analog devices. then i'm trying to calibrate the ones that are out of specs.

  in today's episode i will show you how i built an adjustable electronic load.at the end of the video im testing this unit with another great diy project,an adjustable power supply.Electronic loads are very useful for testing power sources. every serious hobbyist or technician should have one.for instance you can check a usb charger or a power supply if it can provide the current it claims or not. schematics   pcb components placement  if you cant understand how the components are placed on pcb you must download this file and install diptrace software to view it.

repair tip for the philips crt tv 14PT1332/01 CHASSIS L6.1AA. its a very common failure in these models and in other similar philips models too. i hope someone may find it usefull. sorry for the shaky video.it was last moments filming..