Learning the Art of Electronics, Week 2
2L1.1 Ok, I form a simple low pass filter using unknown RC values. Then I measure time constant using scope and 500Hz square wave. Time […]
Electronics
RC and RCD snubber
Snubber Circuit Design Analysis
My new toy – Tektronix 2221A
My new toy – Tektronix 2221A Some links realated to this scope. http://w140.com/tekwiki/wiki/2221 http://wolfalex.bplaced.net/te/tek2221a/tek2221a.htm Tektronix(泰克) 2221A 数字存储示波器拆机图 http://emperoroftestequipment.weebly.com/
Learning the Art Of Electronics
I have decided to get my self together and systematize my knowledge of electronics. It is very similar situation as for this guy. Electronics is […]
Essential toolkit from iFixIt
Love this toolkit. Nice packaging, tools seem quality made and should last more that one disassembly. Nice job iFixIt! Kit Includes: Custom iFixit Bit Driver […]
Making an adjustable “lab” power supply from scrap
Had an old power supply board lying around that was ripped from dead/old printer. PSU model is CZ57PSE EPSON To make it work one should connect […]
Assembled and boxed Clone PI AVR metal detector
Some more photos of boxed Clone PI AVR metal detector and self made coil. I have made a coil from Ethernet cable between two round […]
UT61E digital multimeter schematics and integrated circuit datasheet
ES51922 application circuit from ES51922 datasheet: In UT61E1 some features of ES51922 are not used and can be enabled by simple hardware diy: 112 APOSEL […]
Adjusting and calibrating Hameg HM-605 channel gain
Yesterday I have noticed that voltage or gain of channel 1 in my scope is a little bit off ( noticed that by analyzing one […]