Randy,

Thank you and thanks again for the tip on where to purchase the components. Today, I used eBay to purchase another HE sensor and tachometer display for my drill press. I plan to install it soon and will post it.

Also the tachometer versions I bought use one surface mount IC and a few surface mount resistors and capacitors. I choose this version vs. ones with more discrete components because I thought maybe the surface mount technology may draw less current. Originally wanted to tap in directly to the correct voltage somewhere on the lathe electronics to my motor speed regulator but would put a 0.1 quick-blow inline fuse in the connection to protect it. I decided against this only because I didn't want to chance destroying a $150 controller board for the less than $20 tachometer so I used a separate power supply. Just an FYI the tachometer with surface mount components draws current ranging from 25 mA at zero RPM and up to 36 mA at 3000+ RPM.

Paul