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  1. J

    Intense short electric course

    Engineering Real Results
  2. J

    fusion essential led g9 Anyone?

    Yeah 20 lamps is circ £92 for LAP £85 for Jacobsen £105 for fusion essential £ 140 for Philips ... Big differences, but completely unknown difference in reliability. G9s have such a problem with reliability it's difficult to decide what's best
  3. J

    fusion essential led g9 Anyone?

    Thanks, yeah strangely enough I found the cheap "Dial" G9s from B&Q/tradepoint to be better than the big names, but they appear to have dropped them in favour of jacobsen, which again I have little knowledge about their reliability in G9
  4. J

    fusion essential led g9 Anyone?

    Yeah, in particular the G9, there is a bit of an issue with Philips, and Osram (and many others) due to the small size and overheating. So I am looking for something that's ok in g9. Lots of luminaires all with G9's - looking for a suitable lamp for all of them as standard.
  5. J

    fusion essential led g9 Anyone?

    Has anyone experience of the fusion essential led g9 available from CEF ? They are considerably cheaper than Philips, or Osram but not so much like the "unknown" brands touted about the Internet sales.
  6. J

    It's with regret I have to inform you, Christina (Sparkychick) has passed

    Very sad news, it was both heartbreaking and inspiring reading her recent posts about her situation . ❤❤❤
  7. J

    How is everyone's Summer?

    It hasn't been the best of summers, the occasional day etc. We did go down to weymouth, and back over 3-4 days calling in at various places along the way, it was definitely summer there and then, but back to rain etc once we got back to Scotland.
  8. J

    How is everyone's Summer?

    I am afraid I was working the day we had summer here in Scotland.
  9. J

    Who uses 3d printers & 3d scanners.

    Not really, the cr10s was definitely an entry level printer made down to a price, so it was pretty much de rigueur that you had to add bracing, hotend, feed mods etc. In all honesty the best two mods were firstly the auto leveling - had to add opto isolation and a few other bits of...
  10. J

    Who uses 3d printers & 3d scanners.

    I have a couple of printers, a cr10s (with loads of mods, auto bed levelling, enhanced hotend & fans, aluminium feed, dampers on steppers etc etc.) And a stock (ish) ELEGOO mars 4 ultra. Software I use voxeldance tango for the mars, and cura for the cr10s. For design work I use fusion360 No...
  11. J

    UK Shower pump wired off shower

    Depends how it is connected, which is of course a practical issue, the terminals are usually designed for 6/10mm cable so if you can ensure the larger cable makes direct contact with the termination, then the smaller cable isn't in the path. If the smaller cable is squeezed between the main...
  12. J

    Definition of own circuit

    May I suggest you familiarise yourself with part 2 (definitions) of the regs. A circuit is defined quite clearly in there, a seperate circuit is therefore a separate one of those. The definitions as used/defined by the regs are what we all must follow, so learning those would be far better...
  13. J

    UK Shower pump wired off shower

    Providing there is a fcu to provide overload protection for the pump. (A pump is NOT a fixed load) And a fault on the 2.5mm (far end) cable before the fcu has a low enough Zs to provide ADS by the 40A MCB/RCBO ( or the use of the RCBO/RCD for fault protection instead of additional protection)...
  14. J

    Electronic Books

    I have since found the 3rd edition of the art of electronics in pdf online. Won't link to it of course, but it's out there. There are many people on YouTube who do quite simple electronics projects and include the pcb design, and final assembly and testing - some are a good overview. For...
  15. J

    Electronic Books

    Ah OK that makes sense, never known them described as electronic books - just ebooks, ePUB, pdfs etc (although I did know what the 'e' stood for)
  16. J

    Electronic Books

    You stated electronic rather than electrical, so I would start with this for electronics, perhaps an earlier version (2nd edition?) Which will be considerably cheaper (£20)...
  17. J

    Dodgy trade pictures for your amusement! - 1 Million Views!

    That's a 2A BS 546 plug, so same range just 2A rather than 5A as the OP indicated. 2A is pretty rare TBH
  18. J

    Amendment 3 2024, BS7671 2018.

    Well it's a pretty common issue with the cheaper microprocessors out there. If there is no supply to the main controller, but there is to one of the i/o ports the current can flow into the controller and destroy it. If the supply is there the relative voltage across the protection diodes is...
  19. J

    UK Help / Advice required

    Given that, it probably makes sense to TT the shed, unless you can be sure it doesn't act as an extraneous-conductive-part. (The SWA won't have sufficient cross section for ECP bonding.) Just being metal doesn't necessarily mean that it could introduce a potential from outside, it could...
  20. J

    Amendment 3 2024, BS7671 2018.

    The problem is that the electronic circuit is, say energised and has a detection feed from the output, when it's the correct way round and it trips or is switched off, the detection circuit is dead, but the main circuit is still energised. All good. However if the wrong way round, when it...

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