MrJohhhnnnyyy
Videos about my electronics projects, repairs and other related stuff
Happy New Year Everyone
I live in a WAR ZONE now (explicit)
DC adapter (wall wart thingy) diagnosis
Update 13th of July 2020
Buck converter-based Pb-acid battery charger
Soviet charger&projects in background
Update (it's about time, isn't it :))
Diff amp using discrete parts
I'm just tired
Happy New Year to all of you!
65W CFL Repair Attempt
Speed regulator for universal motor
Update!
Li-Ion battery vs the elements
Simple FM superregen receiver
Cheap temp controlled soldering iron
Simple turn signal relay
Another set-top box repair
Voltage regulator for scooter is in a box now
Simple voltage regulator for scooter/motorcycle
Very FAKE device for scooters
Schematic for protection&feedback of my ATX battery charger
Micro USB socket repair - part 2 of 2
Micro USB socket repair - part 1 of 2
ATX PC power supply made into car battery charger
Long video about transformer calculation using special software
Car battery charger repair - Part 2 of 2
Car battery charger repair - Part 1 of 2
Boost converter w/ aux +10V rail
Quick look at "ElmCie" LC meter