circuit drawing pen

[Rob_the_rich]

Check this out

https://www.youtube.com/embed/LgZKIgk2hk8?feature=oembed

 

[steptoe]

I saw that on my facespace  this week,

I assume its a better refined version of the conductive paint that was about 30 odd years ago. 

 

[Tony S]

The pens were kicking about years ago. I didn’t rate them, the paint was better.

 

[roys]

Did you not used to get something similar for repairing heated rear windows, sure I can remember using one on one of my Cortinas,

 

[ruston]

I used the paint a lot on the cars back in the day, also on alarm tape . Anyone remember that lol?

 

[Tony S]

Did you not used to get something similar for repairing heated rear windows, sure I can remember using one on one of my Cortinas,

I got a kit from Opal, the bloody instructions were in german! Most I could work out but bimspulven had me stumped. Bimspulven = scouring power.

I tried the paint and pens for repairing circuit boards in studio photographic flash units. I gave that idea up when it blew a hole through the board. Back to replacing burnt out sections with wire and solder.

 

[NozSpark]

I got a kit from Opal, the bloody instructions were in german! Most I could work out but bimspulven had me stumped. Bimspulven = scouring power.

I tried the paint and pens for repairing circuit boards in studio photographic flash units. I gave that idea up when it blew a hole through the board. Back to replacing burnt out sections with wire and solder.

I used to be able to repair multi layer PCB's using a track repair kit (loads of differently sized track on an Airfix type thing) and araldite

 

[Tony S]

The boards for the flash units were badly designed from the outset, 8 x 25A diodes on one board wasn’t a good idea. A 1000kJ unit can discharge 400A @660V in less than 1/250th of a second, the track became a fuse after a while in use. Either that or the tracks would flashover, whichever way it went, it resulted in a hole through the board.

I made the mistake of plugging a flash head in to a fully charged power pack. It blew the 20 way plug and socket apart, it didn’t do my hand much good either.