I found a free 19" Dell M992 CRT monitor on Craigslist the other day. The poor monitor is rather beat up and was filthy when I got it. I think I have nursed it back to health, but we shall see. It is made by Samsung for Dell in 2002. Warning: Never remove the cover of a CRT unless you are trained to do so. The high voltages inside a CRT can kill you. Sorry for glitches in the video near the end! Happens on my Samsung Galaxy S7 sometimes after pausing and resuming the recording. ------------ Update: Nov 17 2016, the cleaning appears to have fixed the arcing issue. On the other hand, after using this monitor to do some work, I have deemed the CRT itself is too worn out. The picture is soft and the max white level is too low to use. I'll be taking the monitor to an e-waste collection facility. ... https://www.youtube.com/watch?v=fH0i4-CNrIc

The Macintosh Centris 610 is a humble machine that was in the mid-range of Apple Macintosh computers when it was released in 1993. With only a few dollars in parts (or free if you have them lying around) you can improve this computer's performance by a whopping 42%. The mods done here were developed by Guy Kuo and Eckart Hasselbrink back in 1993 and 1994. 0:00 Into and overview 3:31 RAM upgrade for the Centris 610 8:12 Video RAM upgrade for the Centris 610 12:24 Getting the Centris 610 on the internet via ethernet 15:59 Overclocking the Centris 610 41:28 Fixing the Ethernet after an overclock 47:35 Final testing and outro -- Links Centris 610 clock mod: (Thank you Guy Kuo) https://websites.umich.edu/~archive/mac/misc/documentation/centris610clockmods1.45.txt Ethernet Mod (Thank you Eckart Hasselbrink) http://www.applefool.com/clockchipping/c610.html Modification #3 (talks about overclocking other models) https://wiki.preterhuman.net/Mac_Crystal_Oscillator_Speedup Adrian's Digital Basement Merch store: https://my-store-c82bd2-2.creator-spring.com/ Adrian's Digital Basement ][ (Second Channel) https://www.youtube.com/channel/UCbtwi4wK1YXd9AyV_4UcE6g Support the channel on Patreon: https://www.patreon.com/adriansdigitalbasement -- Tools Deoxit D5: https://amzn.to/2VvOKy1 http://store.caig.com/s.nl/it.A/id.1602/.f O-Ring Pick Set: (I use these to lift chips off boards) https://amzn.to/3a9x54J Elenco Electronics LP-560 Logic Probe: https://amzn.to/2VrT5lW Hakko FR301 Desoldering Iron: https://amzn.to/2ye6xC0 Rigol DS1054Z Four Channel Oscilloscope: https://www.rigolna.com/products/digital-oscilloscopes/1000z/ Head Worn Magnifying Goggles / Dual Lens Flip-In Head Magnifier: https://amzn.to/3adRbuy TL866II Plus Chip Tester and EPROM programmer: (The MiniPro) https://amzn.to/2wG4tlP https://www.aliexpress.com/item/33000308958.html TS100 Soldering Iron: https://amzn.to/2K36dJ5 https://www.ebay.com/itm/TS100-65W-MINI-Digital-OLED-Programmable-Soldering-Iron-Anti-static-Structure/113382669853 EEVBlog 121GW Multimeter: https://www.eevblog.com/product/121gw/ DSLogic Basic Logic Analyzer: https://amzn.to/2RDSDQw https://www.ebay.com/itm/USB-Logic-DSLogic-Basic-Analyzer-16Ch-100MHz-4Ch-400MHz-Xilinx-Spartan-6-FPGA/202543965672 Magnetic Screw Holder: https://amzn.to/3b8LOhG https://www.harborfreight.com/4-inch-magnetic-parts-tray-90566.html Universal ZIP sockets: (clones, used on my ZIF-64 test machine) https://www.ebay.com/itm/14-16-18-20-24-28-32-40-pin-IC-Test-Universal-ZIF-Socket-Fs/303206721971 RetroTink 2X Upconverter: (to hook up something like a C64 to HDMI) http://www.retrotink.com/ Plato (Clone) Side Cutters: (order five) https://www.ebay.com/itm/1-2-5-10PCS-Micro-Scissor-125mm-PLATO-170-Electronics-Cutter-Side-Cutting-Pliers/163458746184 Heat Sinks: https://www.aliexpress.com/item/32537183709.html Little squeezy bottles: (available elsewhere too) https://amzn.to/3b8LOOI --- Links My GitHub repository: https://github.com/misterblack1?tab=repositories Commodore Computer Club / Vancouver, WA – Portland, OR – PDX Commodore Users Group https://www.commodorecomputerclub.com/ --- Instructional videos My video on damage-free chip removal: https://www.youtube.com/watch?v=XQVjwPsVFd8 --- Music Intro music and other tracks by: Nathan Divino @itsnathandivino ... https://www.youtube.com/watch?v=hYFUvM3KZ3Y

#ViewerDonation #1570 #VoltageConversion A viewer sent me a package packed full of Commodore goodness all the way from Germany. This is part 2 where I troubl... ... https://www.youtube.com/watch?v=G0dr-Gbedhg

The phone goes through fits -- where pushing in the downward motion on the joystick doesn't register. You can hear the joystick physically clicking, but it often doesn't register they down in the phone's OS. If I push hard enough in the downward motion on the joystick, it usually works, but its very annoying when texting because on this phone you must push down to select the next word for T9. All other directions work perfectly on this joystick. Spraying compressed air into the joystick seems to help for, but only for a short time. If you google for K790 or K800 joystick problems you can find other people having this problem with this phone. People say the problem lies in the fact dust gets trapped inside the joystick, causing this problem. The strange thing is the problem is always with the "down" direction. I've already sent the phone in for repair once but they did nothing but upgrade the firmware, which changed nothing with regards to the joystick. I wish this had happened within the first 30 days of owning the phone so I could have just returned it, but the problem started happening around 45 days into owning the phone. This joystick is the same as on the K800i, K800a and K790i. ... https://www.youtube.com/watch?v=o5yaEsU2sbk