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#1
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Thanks... but one more question.. The boards I've seen have individual
copper pads that surround each hole. The pads do NOT interconnect holes. If these are for wirewrap, why the copper pads at each hole? - jim p.s. I'm familiar with many fabrication techniques, I'm just trying to figure out how one works with these particular boards.. i.e. why are these boards so common and electronics stores. W3JDR wrote: Unclad perf-board is generally used for wire-wrap applications only. To do wire-wrap work you need a wire-wrap tool and a roll of wire-wrap wire. Both are available at Radio Shack. You buy the type of IC sockets that have long wire-wrap pins. For leaded components, you either wrap directly to the leads or you put them in wire-wrap sockets. Wire-wrap works OK for digital and low-freq analog work, but it doesn't work at all for SMT parts. You generally need a good copper ground plane for RF work. Joe W3JDR "James W" wrote in message ... When working with simple perfboard (just holes, no 'traces' connecting the holes) how does one connect the components together? I'm guessing by using jumper wires for point-to-point wiring on the backside, but that seems a bit ugly. - jim |
#2
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I don't know what the manufacturer is thinking when they do that, but I find
the solder pads very convenient for mechanically holding the componants to the board. With just wire wrap things slide around (and it didn't occur to me until _just now_ that I could have used glue). I generally prefer dead-bug on a ground plane, or paying a few bucks to a quick-turn PCB house. "James W" wrote in message ... Thanks... but one more question.. The boards I've seen have individual copper pads that surround each hole. The pads do NOT interconnect holes. If these are for wirewrap, why the copper pads at each hole? - jim p.s. I'm familiar with many fabrication techniques, I'm just trying to figure out how one works with these particular boards.. i.e. why are these boards so common and electronics stores. W3JDR wrote: Unclad perf-board is generally used for wire-wrap applications only. To do wire-wrap work you need a wire-wrap tool and a roll of wire-wrap wire. Both are available at Radio Shack. You buy the type of IC sockets that have long wire-wrap pins. For leaded components, you either wrap directly to the leads or you put them in wire-wrap sockets. Wire-wrap works OK for digital and low-freq analog work, but it doesn't work at all for SMT parts. You generally need a good copper ground plane for RF work. Joe W3JDR "James W" wrote in message ... When working with simple perfboard (just holes, no 'traces' connecting the holes) how does one connect the components together? I'm guessing by using jumper wires for point-to-point wiring on the backside, but that seems a bit ugly. - jim |
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