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  1. bushtech

    Help with sensing a stopped sprocket

    In other words?
  2. bushtech

    Wi Lite wireless lighting switch

    Is that 9.1 V I found the reverse voltage of the zener? What is the 692mV I found? Busy swotting up zener diodes so I can try and spec the replacement.
  3. bushtech

    Help. No idea what this is.

    Fascinating! Thanks hevans1944
  4. bushtech

    Wi Lite wireless lighting switch

    I put that zener diode back but still get 11.24V, 0.1V and 1.46V. Still think the diode is fubar. I am going to be ordering some zener diodes as I don't have any spares. What should I be looking for specwise?
  5. bushtech

    Wi Lite wireless lighting switch

    On the pulled diode I get 9.2V. This is with pushing 19.7V through the circuit and a built up (3 resistors) series resistance of 1627ohm. Just as an aside when I measure the resistance of each resistor and add them up it equals 1627 ohm. But when I meter across all 3 resistors using the lowest...
  6. bushtech

    Wi Lite wireless lighting switch

    Lol. Blind luck. I sometimes feel like a blind man trying to solve a Rubik's cube. So far found an adjustable wall wart that pushes 19V on it's 12 V setting. Now for that resistor
  7. bushtech

    Wi Lite wireless lighting switch

    Thanks St Edd I am still a novice when it comes to electronics, lots to learn. Don't know what you mean with a Vf "diode" test. Took DMM on diode function and it reads 692 one way, nothing other way. For your Zener test I'm busy rounding up the bits and bobs required. But it looks like third...
  8. bushtech

    Wi Lite wireless lighting switch

    I retested the removed diode D2 as it's now off board. Using analogue MM: In X1 range: 30 ohm & 0M So it tests good as a diode In 10k range I get a reading both ways So if it's a Zener it's bad How do I determine if it's a Zener or a diode
  9. bushtech

    Wi Lite wireless lighting switch

    Could it be that I have replaced Zener diode at D2 with a normal diode?
  10. bushtech

    Wi Lite wireless lighting switch

    Thanks St. Edd Here's a photo of the area you can't see. I removed cap C4 which was blocking view. As can be seen I replaced I replaced D2 with a 1n4007. Could that have been a zener as I was getting reading both ways when testing for a diode. It was also an orange job like D5. I can't see...
  11. bushtech

    Wi Lite wireless lighting switch

    St. Edd Please sit in a chair with armrests when you see this. Would hate you to hurt yourself falling off your chair when you see these bodges. I had to move two diodes offboard due to space constraints and board damage to solder pads from my earlier attempts when I was still learning how to...
  12. bushtech

    Wi Lite wireless lighting switch

    Sheesh St Edd! When do you you sleep? Will start checking very carefully. Hate working on boards with mains power connected to them
  13. bushtech

    Wi Lite wireless lighting switch

    Just to increase my electronics knowledge. Here is a photo of the daughter board connection on my switch: How do you remove this board. Is it a plug in or do you need to unsolder it? If so, where is the correct place to unsolder it, bottom of motherboard or top of daughter board. Sorry, bit of...
  14. bushtech

    Wi Lite wireless lighting switch

    St. Edd 1."THAT combo would let about 500 ma of current through . . . . .more than is needed, to then rectify and filter, in order to be able to snap the 24VDC relay in ," According to a datasheet I found for that NT72C -S10 the relay is actually 12VDC. 2. I replaced the 4 diodes with smd...
  15. bushtech

    New LTspice

    Thanks Adam
  16. bushtech

    Steel work bench

    @et al Would grounding shrtrnd's workbench as per Alec_t's suggestion have prevented shrtrnd from electrocuting himself.?
  17. bushtech

    Wi Lite wireless lighting switch

    I have ordered the diodes and cap. Will let you know if that sorted it
  18. bushtech

    Wi Lite wireless lighting switch

    Correct St Edd thanks Esr meter reads 0.78micro farad Fyi on the switch's box it reads 5A 1000W
  19. bushtech

    Steel work bench

    I have a wooden workbench to which I have stapled a piece of leather upside down to it so that the shiny side is down. Works quite well, things don't slide around
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