John Stimson Wrote: > 1) The grounds should all be tied together, preferably at the same > point. > > 2) For short connections, I trim a piece of the resistor leads to > bridge between the connection points. You can bridge with just solder, > but I feel like having the wire in there is a more robust connection. > Use insulated wires for longer connections or if you have to go around > another connection point. > > 3) I typically use 1/4 W resistors since they are easy to find. These > resistors are not carrying much current due to their high resistance. > 1/8W is probably okay. Don't use high power resistors becase many of > those use coiled wire, which is inductive. > > 4)Ideally, the film capacitor should be as close as possible to the > IC. Its job is to handle the high speed transients that the > electrolytic capacitor can't respond to. You want to minimize the > resistance and inductance between it and the IC. The electrolytic > capacitors can be wherever you want on the board. In between when I asked about prototyping boards and your answer, I attempted to do a little learning on my own. I bought a spool of tinned, non-insulated "bus wire" from Radio Shack (I think it's 24 gauge). I had intended to use it to route the circuit around the board.
This particular board has two rows of holes down the middle, the copper pads of which are connected. I was going to use those rows as my ground. There are also numerous groupings of two and three holes, the copper pads of which are also connected. I was going to install the parts in these "group hole" pads, and then run jumpers of the bus wire between the "group hole" pads to complete connections. Because of the configuration of the groups, in some instances, say between the film capacitor and the +V lead on the OpAmp, the connection might require three little jumpers (six solder connections), and might run a total distance of and inch and a half. Will this distance/soldering result in too much resistance/inductance? I could make more direct and shorter (but less neat) connections if this is an issue. Does insulated jumper wire lower inductance, or just prevent shorts? I am fairly ignorant about electronics, as you can see. I don't even understand how the capacitors effect the condition of the power supply, as they seem (from the schematic) to be "off to the side" of the circuit bewteen the power supply and the IC. Again, thank you very much for your help. -- jonheal Jon Heal says: Have a nice day! http://www.theheals.org/ ------------------------------------------------------------------------ jonheal's Profile: http://forums.slimdevices.com/member.php?userid=2133 View this thread: http://forums.slimdevices.com/showthread.php?t=20907 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
