Eevblog #392 – 555 led pwm hack
555 T-Shirt: http://www.zazzle.com.au/classic_555_timer_chip_schematic_circuit_t_shirt-235193027808469926 Hacking the Mantis Elite microscope to control the LED brightness with a 555 PWM circuit. Foru
555 T-Shirt: http://www.zazzle.com.au/classic_555_timer_chip_schematic_circuit_t_shirt-235193027808469926 Hacking the Mantis Elite microscope to control the LED brightness with a 555 PWM circuit. Foru
Teardown Tuesday What's inside Rigol's low cost DSA815-TG spectrum analyser? Photos: http://www.flickr.com/photos/eevblog/sets/72157632115219155/ Forum Topic: http://www.eevblog.com/forum/product-revi
A review of the Mantis Elite 3D Stereoscopic microscope from Vision engineering. http://www.visioneng.com/ http://www.hawkerrichardson.com.au/ Unboxing: http://www.youtube.com/watch?v=PlAXAuco8gs Foru
Measuring the current consumption of some solar powered Casio calculators. And a look at an unusual chip mounting technique. Solar…
Teardown Tuesday. What is inside a fake clone A1265 Apple USB charger? WARNING: These fakes and cheap no-name chargers are…
3 ways to stop oscilloscope trigger jitter on burst waveforms. A follow-up to the Delay Line video #2: http://www.youtube.com/watch?v=6Kcf7IJjszg Trigger…
Part 2 on Piezo-electric acoustic glass delay lines. Some measurements and playing around. Part 1 is here: http://www.youtube.com/watch?v=tQyX3F4ggM8 Delay line…
More retro computer time! Repair of a 1992 vintage Amstrad NC100 Notepad Forum Topic: http://www.eevblog.com/forum/blog-specific/eevblog-385-amstrad-nc100-notepad-repair/ EEVblog Main Web Site: http:
What's inside Agilent's new 4000 X-Series Touch Screen Infiniivision oscilloscope? Teardown Tuesday Forum Topic: http://www.eevblog.com/forum/blog-specific/eevblog-384-agilent-4000x-oscilloscope-teard
Review of the new Agilent 4000 X-Series Infiniivison Touch Screen Oscilloscope. And a comparison with the 3000X Hires Photos Here:…