On 02/08/2018 12:12 PM, David Riley wrote:
On Feb 8, 2018, at 11:08 AM, Neil Cherry via vcf-midatlantic <vcf-midatlantic@lists.vintagecomputerfederation.org> wrote:
My reference for the cold water pipe was for use with the screw driver to ground.
Well, the cold water pipe will connect to EARTH ground, which if your house is wired correctly should be the same as ground on your power outlets. But since you're doing this with the system unplugged (you're doing this with the system unplugged, right?), it has no connection to the tube/chassis ground, which is what you really want.
Very good point. I don't recall if it was unplugged. I don't think it was but I can't recall. I do know we worked on live systems with the scope (Isolated). -- Linux Home Automation Neil Cherry ncherry@linuxha.com http://www.linuxha.com/ Main site http://linuxha.blogspot.com/ My HA Blog Author of: Linux Smart Homes For Dummies