ATX computer power supplies are cheap and if you are like me you can not go 10 steps in your house without tripping over one. Research Links Instructables: How to Power Up an ATX Power Supply Without a PC! – all you need to do is bridge 2 pins on the Read more…
If you have a pile of old Western Electric telephones do not junk them. Their price on ebay is high enough to merit selling them. The telephone in the image above is even more desirable because it has a metal dial instead of a plastic one. Research Links Beatriceco: Western Read more…
Research Links Alibaba: 300b-98 Wikipedia: 308B Ebay: 300b-98 tube
This is my page for keeping notes about small automation companies for the purpose of emulating them. Sytech Systems
Research Links Make Your Own PCBs on an Inexpensive Desktop CNC Mill Ebay: CNC machine Zen ToolWorks Kits Instructables: A_Steingrube
Research Links BottleHead Tube Amplifiers – prices are 600 USD and up Ebay: BottleHead Ebay: JJ 2A3-40 tube – this tube sold model sold for 50 to 750 USD on ebay ​ The target audience is obviously quite willing to spend. Below is an example Craigslist ad: This amp is a beauty Read more…
Research Links High Quality (and Safe) Copper Plating by A_Steingrube
Research Links La Crosse WT-8005 WWV synced clock manualwt-8005u[1] ​
Research Links Wikipedia: LASER printing Google: LASER printer hexagonal mirror YouTube: How To Run an HP LaserJet 4P Polygon Mirror Motor – Technical details YouTube: Direct LASER printing YouTube: Home Made LASER exposer There are many applications for LASER printer parts detailed on YouTube and elsewhere. A video of the hexagonal Read more…