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  1. Arouse1973

    Multiple interrupt functions but one interrupt vector

    No worries Adam
  2. Arouse1973

    Multiple interrupt functions but one interrupt vector

    It's late here now so what I will do is ask some friends at work in the morning for you. Someone may come back with the answer before then. Cheers Adam
  3. Arouse1973

    Multiple interrupt functions but one interrupt vector

    Have a look at the interrupt part of this link, maybe it will help? http://www.xargs.com/pic/c-faq.html#c18isr Cheers Adam
  4. Arouse1973

    SCR latching trouble

    Is it possible the IR transistor is actually turning the SCR off by starving current to the bottom PN junction of the device when IR transistor turns back on. This would explain why the push switches work. Connect a resistor between the gate of the SCR and collector of the transistor, try a 2K2...
  5. Arouse1973

    SCR latching trouble

    Ok just a thought, thanks. Adam
  6. Arouse1973

    SCR latching trouble

    Are you operating this in daylight? Do you think you need to consider that? :) Thanks Adam
  7. Arouse1973

    Operating something when furnace fan is on

    Would the fan have strong enough air flow to move the prop of another smaller fan. You could then sense the voltage produced from the second fan to trigger a circuit containing a relay or something that can be used as a switch for your new fan? Cheers Adam
  8. Arouse1973

    Wanted: wanted thermal camera

    Have a look at these guys, they might be able to help you find another one more suitable. http://www.testequipmenthq.com/product-category/environmental/environmental-temperature/ https://www.microlease.com/us/search/keywordsearch/searchfor?type=keyword&keyword=thermal Thanks Adam
  9. Arouse1973

    Wanted: wanted thermal camera

    Hi Ian As you know these are expensive. Where have you looked so far? Cheers Adam
  10. Arouse1973

    PCB Order Mirrored?

    You dont normally need to, thats old fashioned What PCB package did you draw it in.? Post your design files here. Adam
  11. Arouse1973

    what is the difference/s if i use a thyristor instead of the transistor in this circuit?

    If you can supply enough current to trigger the gate then the Thyristor will latch on and stay on until the current through the device falls below its holding current. This type of device is also called an SCR. Thanks Adam
  12. Arouse1973

    Need Help to find suitable magnetic sensor

    Have you looked at the Allegro hall devices like the A1324, 5, 6 Thanks Adam
  13. Arouse1973

    5KHz Regulated Supply

    What's your budget? Did you want to build something yourself? Thanks Adam
  14. Arouse1973

    Transmitter circuit operation explanation

    It also smells a bit like a tri-tet :)
  15. Arouse1973

    Hello

    Hello Beau and welcome to EP Adam
  16. Arouse1973

    Where can I learn how to design a transformer?

    Just out of interest, what special about your project that requires a custom tranny. Cheers Adam
  17. Arouse1973

    Testing capacitors

    How are you testing the capacitance out of interest. Do you take into account the DC bias issue with MLCCs? Thanks Adam
  18. Arouse1973

    Variable Frequency Op-Amp Astable

    The use of a multi turn POT for VR1 will help with the selection of a specific frequency, how well? You will have to try it. Thanks Adam
  19. Arouse1973

    basic electronics question: types of oscillators

    What makes you think a 2.4 GHz computer is running at 2.4 GHz? The speed of a computer is an equivalent speed as if it was running on 2.4GHz. The clock speed will be a lot less. A computer clock is not a rf transmitter and falls under the EMC directive for IT equipment and not the RED...
  20. Arouse1973

    Help to identify transister value

    Nice find Dave.
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