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  1. C

    FM radio with impedence 5 Ohm output

    You can connect any impedance speaker to the output. The volume will depend on the impedance and the size of the cone. With low wattage amplifiers, you can connect any impedance to the output.
  2. C

    FM radio with impedence 5 Ohm output

    The lettering may be 8ohm but some of the lettering may be missing. You can connect 8 ohm speaker
  3. C

    Can I Change Transformer step down with stavolt/stabilizer

    I have a 1kw safety transformer (isolating transformer). It weighs a ton. Imagine a 2kw auto transformer!
  4. C

    PCB minimum thickness (rigid)

    If you are designing a 4 layer board, you will have already produced a double-layer board and know the standard thickness and this can be achieved by combining two boards to achieve the same thickness.
  5. C

    resistor blown frequently

    Firstly you say they are in series and now you draw them in parallel. Nothing is making any sense.
  6. C

    resistor blown frequently

    Is the resistor in series with that blue thing? Is the resistor ORIGINAL
  7. C

    Keep blowing transformers

    Put a 10 ohm 10 watt resistor in series with the LED strip.
  8. C

    resistor blown frequently

    You have to work out if it is metal film or carbon. Metal film will be say 1 watt and carbon will be 0.5 watt. You can do a couple of things. If it is metal film, use 2 x 22R 1 watt metal film in series. Or 4 x 47R carbon in series parallel.
  9. C

    Best brands of pots?

    Here is a simple detector circuit for 75 cents Get a pot, remove the cover and add a vane that varies the brightness from the transmitter to the receiver
  10. C

    Best brands of pots?

    You need a "vane pot"or "light pot" with no wiper to wear lout.
  11. C

    resistor blown frequently

    What is the value of the resistor?
  12. C

    Minimum current draw of AC to DC converter at no load

    Some of them have a special circuit to reduce the idle current to 10mA or less and it looks for something connected to the output. Some 4kW inverters drop to 10mA.
  13. C

    Determining ratings on stepper motor

    Start by measuring resistances and work out where the coils start and stop and maybe have a centre tap and then come back to us.
  14. C

    Solar Charging System Specs Inquiry

    Since you do not know the current capability of the panels, here's what you do. Get a car globe such as an inside light globe or a tail light with a wattage of 6 watts to 12watts and connect it the 15watt panel and gradually turn the panel into the sun. Measure the voltage. Do the same with...
  15. C

    relay clicking in & out on technics SU-V2-XE amplifer

    It's not going to be the relay.
  16. C

    Working with an RC timer and a transitor to power a high current device

    What do you want to do?
  17. C

    Parallel power supplies?

    Feel the diodes and that will let you know if they are sharing.
  18. C

    Have you seen one of these and how can I make it work.

    It is simply a resistor/capacitor substitution box. I bought one 35 years ago.I will possibly use it next year.
  19. C

    Parallel power supplies?

    If you put 3 x 10 amp diodes in parallel from each supply you will get very good current sharing, providing the voltage from each supply is absolutely identical.
  20. C

    LED garden lights malfunctioning

    The fault is the solar panel. That's OBVIOUS.
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