| sci.electronics.repair@googlegroups.com | Google Groups |  |
| Unsure why you received this message? You previously subscribed to digests from this group, but we haven't been sending them for a while. We fixed that, but if you don't want to get these messages, send an email to sci.electronics.repair+unsubscribe@googlegroups.com. |
| N_Cook <diverse@tcp.co.uk>: Oct 26 09:28AM Just in case anyone wishes to try similar. Razorred back the blue lettering side of the ribbon either side of break, made more definite, so cannot intermittently remake after this bridging Robbed slide contact from a new smallest size slide switch. Only a fine notch between contact faces, so stripped some seriously multistrand fine copper wire to loop into that notch. Twisted up and soldered off , to give some pretension to the contacts, ie to similar degree as the header contacts . Keep the excess wire in place to help sliding over the ribbon edge. Check for continuity. Swathe in hot-melt glue . Proof tested by checking continuity while locally bending, positive and negative, to about 30mm radius of curvature. Not that there is any bending, in use, just as some sort of integrity test. More generally within the width of a ribbon , perhaps, make a hole between conductors, cut in half one of these switch contacts , place over bared trace, pass copper wire loop through the hole and twist up against tiny washer and solder off, cut off excess wire. I wonder if anyone has tried "cigarette paper" spot-welding a bridge connection on a ribbon cable. A thin bridge strip clamped in place over a barred trace , with some thin cigarette paper , in between. Connect a high A, low V transformer (+diodes?) to it, with a current monitoring relay mains cut out. Clamp up tighter until the current bridges the gap and forms some sort of spot weld. Repeat for the other contact. Would it fail in similar fashion to trying to solder to such ribbon traces? |
| vjp2.at@at.BioStrategist.dot.dot.com: Oct 26 03:23AM Thanks - = - Vasos Panagiotopoulos, Columbia'81+, Reagan, Mozart, Pindus, BioStrategist http://www.panix.com/~vjp2/vasos.htm ---{Nothing herein constitutes advice. Everything fully disclaimed.}--- [Homeland Security means private firearms not lazy obstructive guards] [Urb sprawl confounds terror] [Phooey on GUI: Windows for subprime Bimbos] |
| vjp2.at@at.BioStrategist.dot.dot.com: Oct 26 03:21AM Thanks all - = - Vasos Panagiotopoulos, Columbia'81+, Reagan, Mozart, Pindus, BioStrategist http://www.panix.com/~vjp2/vasos.htm ---{Nothing herein constitutes advice. Everything fully disclaimed.}--- [Homeland Security means private firearms not lazy obstructive guards] [Urb sprawl confounds terror] [Phooey on GUI: Windows for subprime Bimbos] |
| You received this digest because you're subscribed to updates for this group. You can change your settings on the group membership page. To unsubscribe from this group and stop receiving emails from it send an email to sci.electronics.repair+unsubscribe@googlegroups.com. |
No Response to "Digest for sci.electronics.repair@googlegroups.com - 3 updates in 3 topics"
Post a Comment