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Type: Posts; User: Mostie

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  1. Thread: Forum back up!

    by Mostie
    Replies
    25
    Views
    8,915

    using HTTPS throws up an error

    using HTTPS throws up an error
  2. Replies
    59
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    26,293

    I had issues with the transistor between the opto...

    I had issues with the transistor between the opto and the SCR
  3. Replies
    258
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    103,247

    Hello BC, that looks interesting, I'm messing...

    Hello BC, that looks interesting, I'm messing around with other stuff but will get back to this at some point.
  4. Replies
    38
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    29,302

    Sticky: I would like one as well.

    I would like one as well.
  5. Replies
    335
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    130,270

    Chris, there's no hysteresis on that circuit

    Chris, there's no hysteresis on that circuit
  6. Replies
    258
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    103,247

    Theunis, I thought the same thing about the...

    Theunis, I thought the same thing about the 555's, however I assumed they were a generic design.
    I think JB used TI, mine are all ST, might be useful know what other folks have used.
  7. Replies
    258
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    103,247

    Hello BC, 1k is what I'm aiming for, just play...

    Hello BC, 1k is what I'm aiming for, just play with the 555 calculator until you get a decent duty cycle. what do you think about the freq. of osc 4&5?
  8. Replies
    258
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    103,247

    that wasn't my point, you were trying to imply...

    that wasn't my point, you were trying to imply the values had been cut by the copier, when JB states these as being correct, however if you read my previous posts to BC, I already knew there was a...
  9. Replies
    258
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    103,247

    not really, if you read post 1 by JB, he gives...

    not really, if you read post 1 by JB, he gives you the value's ????

    BC, got the first 2 working with 1K resistors, changed the cap on no.2.
  10. Replies
    258
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    103,247

    let me do a bit of testing and I'll get back to...

    let me do a bit of testing and I'll get back to you
  11. Replies
    258
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    103,247

    yes, kept adjusting Osc1 to 50hz, it drifted off,...

    yes, kept adjusting Osc1 to 50hz, it drifted off, so i carried on adjusting the pot, until i realised that the resistor was hot, checked the values of the others with the 555 caculator, and........
  12. Replies
    258
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    103,247

    BC, I stored mine away as I was missing some...

    BC, I stored mine away as I was missing some parts, I've got them now but not had time do anything with it, if I get round to it I will post the scope shots
  13. Replies
    394
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    166,636

    no heat, mine only switches on for milliseconds.

    no heat, mine only switches on for milliseconds.
  14. Replies
    258
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    103,247

    BC not tried 2 & 3, waiting on 50 ohm resistors.

    BC not tried 2 & 3, waiting on 50 ohm resistors.
  15. Replies
    258
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    103,247

    thanks Vtech, i fixed it, forgot to cut a track,...

    thanks Vtech, i fixed it, forgot to cut a track, running 3 out of 6 osc.

    942
  16. Replies
    258
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    103,247

    Nice one BC, mine is on stripboard, however I am...

    Nice one BC, mine is on stripboard, however I am missing some parts, which 386 did you use, there seems to be serveral variants? my one may be faulty.
  17. Replies
    31
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    11,106

    Picaxe, my weapon of choice as well :)

    Picaxe, my weapon of choice as well :)
  18. Replies
    258
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    103,247

    thanks John, thats a better picture of the...

    thanks John, thats a better picture of the circuit than the one i had, whats the small diode in the top right hand corner?
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