On Sat, 2008-05-24 at 22:21 -0500, Jon Elson wrote: > Kirk Wallace wrote: > > I have a ten-turn eight Watt Spectrol/Vishay potentiometer. ... snip > If you don't need 8 WATTS (Is it really that much?) you might be > able to find a surplus replacement for less. What is the > resistance reading for it? I have a few 10 turn pots here, but > I doubt any of them are good for more than 2 W. > > Jon
It's a 5k Ohm. It has 15 Volts going through it so the wattage is very low. Maybe the designers liked the heavier case. I found 2 Watt pots at Digikey. Now that I am thinking about it, I may have some in some equipment in the junk pile out back. The wire wound on the base coil form is much larger than the wire in the screw. It reminds me of die bond wire. Maybe the wire is die bonded to the resistor wire through the 4-40 hole. Then the screw is threaded on like a bead and the hole is staked or welded. Some sort of work is visible in the screw slot. I am thinking a tiny coil spring from a watch battery holder could be used to make the connection. Test point pins are pretty long, I suppose? -- Kirk Wallace (California, USA http://www.wallacecompany.com/machine_shop/ Hardinge HNC/EMC CNC lathe, Bridgeport mill conversion, doing XY now, Zubal lathe conversion pending Craftsman AA 109 restoration Shizuoka ST-N/EMC CNC) ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
