Different scenario, but reminds me of this page I ended up on yesterday:
When replacing guitar strings, never do so anywhere near an amplifier (especially a valve amp), nor close to a mains outlet. […] This is a real photo, taken of a mains plug that had a guitar string across the active and neutral pins.
Reminds me of a time at my old work, we had custom built pedestals in the centre of desks for power and data.
I was doing some work requiring unplugging the pedestal from the floor box, fairly normal safe stuff that you don’t think anything of. but my fingers touched the L+N of one of the plugs and I got a Whack… I am holding this plug thinking " how has that got power it’s not in the socket!!!" I grabed my Meter and found 80V’s across the pins…
One of the contract electricans was passing by so I flagged him over… He was bemused somewaht but concluded that somewhere in the pedestal there was a wiring fault that linked one of the other 3 mains plugs to this one. Wiring in side was a mess with no containment to keep stray wires from being incorrectly connected.
I condemned the pedestals pending investigation ( much to the dismay of the resource owner and the school head teacher). No argument could counter risk of death.
The furniture builder came in and discussed the issue, including the fact there had been no electrical saftey testing. He said “My product is good and I will Stand by it.” My response, " Don’t mind standing by it but I am not B…y touching it"
A few weeks later they were returned from reworking, independently inspected and put back in service.
Somehow within 2 hrs of receiving my #2001 sequencer I have managed to loose both the jack boards.
Had them at home, took the box to my workshop, went to check something with the jack boards and they have vanished…
Jacks are overrated. Just solder your patches directly.
I spent the previous evening looking for the sensor kit for a car electronic ignition module set… Found that on the 60th attempt, then realised I had not even got the actual module and spent ages looking for that… I think I am loosing my marble.
Have you checked the fridge?
one moment… (fill 2 20 )
more stuff in there than i was expecting, no jack boards and no beer.
no beer 
did you turn off and back on again , just remember to turn back on though !
sigh…
‘upgrade’ my case’s PSU from 1x microbus to 3x routemaster, and got myself a nice fat hum. And of course I find out áfter mounting each and every module. Sigh…
Buy 3x PSU, get a drone free
what a deal!! An offer I couldn’t refuse…
Oh no!! I’m putting mine together now. Any idea what happened?
I will get back to you once I did some troubleshooting, but I suspect the ground connection between the PSUs is not solid enough and picking up noise from the transformer.
I started off putting all three of my power indicator LED in backwards. So far it seems to be behaving.
Well of course I realized these push buttons were normally closed when I bought them, surely you don’t think I could have missed that.
I think that one can be forgiven, who would think to check if a push button is NC…
I gave myself a headache looking at Tayda’s site last night. There are nine similar-looking push buttons.
| type | cap | terminal | mount | SKU |
|---|---|---|---|---|
| OFF-(ON) | green high cap | board mount | nut | A-3545 |
| OFF-(ON) | red high cap | board mount | nut | A-3499 |
| OFF-(ON) | black high cap | solder lug | nut | A-3489 |
| ON-(OFF) | green round cap | solder lug | press in | A-3488 |
| OFF-(ON) | red round cap | solder lug | press in | A-3486 |
| OFF-(ON) | black round cap | solder lug | press in | A-3487 |
| OFF-(ON) | black flat cap with LED red | solder lug | nut | A-3485 |
| OFF-(ON) | green flat cap with LED yellow | solder lug | nut | A-3595 |
| OFF-(ON) | red flat cap with LED white | solder lug | nut | A-3490 |
Makes sense, right? Right!
and you managed to pick the one . I have ordered smd parts when I needed dip ic’s a couple times by not watching what I was ordering . it sucks when you have to wait on that one part to complete project .
