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  1. kellys_eye

    Radiogram record player very faint sound

    Show us the stylii you are using. There is a reason why they have different stylus for different records and it could be as simple as not using the right needle.
  2. kellys_eye

    Need help with a Proton 619 TV problem. Ticking clock sound...

    Could be as simple as dust build-up on some high voltage areas where there is 'flash-over' - there are usually some spark-gap type areas on the tube base or in the HV section. Give is a blow and suck (giggidy).
  3. kellys_eye

    Repair RF amplifier board

    It's not possible to 'guess' That article covers just about everything you need to know. It also shows how substantial your heatsink needs to be and how the author managed to correctly mount the devices to the heatsink to ensure safe operation. Please read the article and try to understand...
  4. kellys_eye

    Repair RF amplifier board

    The bias setting voltage (anywhere from 0-10V) must also be available for the whole span. There is no way to guess how high or low this bias voltage needs to be so unless you have it ALL available you might never get it set.
  5. kellys_eye

    Repair RF amplifier board

    You need a supply capable of delivering up to 15A (not 0.8A) to set the bias.
  6. kellys_eye

    Repair RF amplifier board

    There are many videos on Youtube that show the construction of 70W RF amplifiers that use the exact same principles except on a smaller scale. Your 600W amplifier uses bigger transistors, larger ferrites and more volts/current but the operating principles (bias settings etc) and even the...
  7. kellys_eye

    Spectrum analyser Equalizer project how to go about it?

    I'll have to pack/weigh the boards to get a postage charge. Will be back in touch when I've sorted that.
  8. kellys_eye

    RC transmitter - Absima CR3P - No power

    Check D5 for proper function. Trace the wire from the power switch through the cable(s) and the bigger board connector. From the pin on the bigger connector, trace the tracks to the circuitry that performs the power-on function (possibly Q1/Q4). You might have to reverse engineer the circuit...
  9. kellys_eye

    Spectrum analyser Equalizer project how to go about it?

    Where are you?
  10. kellys_eye

    Spectrum analyser Equalizer project how to go about it?

    If you are UK-based you can have these boards free of charge (postage only) that will give you all the LEDs you need. Sadly you'll have to desolder them yourself or, possibly, use them as-is in some fashion.... 288 of each colour red, green and blue. I might have a third identical board...
  11. kellys_eye

    Spectrum analyser Equalizer project how to go about it?

    Not much point in using their pcb since you want more channels and a larger display, none of which would be fitted on the board as it is. As for LEDs you'd be better off bulk buying individual rectangular LEDs like these...
  12. kellys_eye

    RC transmitter - Absima CR3P - No power

    Where does the power come into the board and what supplies it? Is your PSU capable of delivering the required current? Did you wire it up/connect/use it properly i.e. did you knowingly do anything 'daft' what using it (finger fault)? Can't see the relationship between the (presumably) power...
  13. kellys_eye

    Spectrum analyser Equalizer project how to go about it?

    @AnalogKid - nice find. I got my copies from those sites originally but forgot the address of the site!
  14. kellys_eye

    Artificial Intelligence

    I make no claims that any prior Government did 'the right thing'. One thing we can be certain of is that anything the Government touches turns to sh1t. But creating an environment where Corporations can benefit from Government decisions (proposed by aforesaid Corporations) is the basis for...
  15. kellys_eye

    Artificial Intelligence

    What would those be? Identification? There can be no fraud if the system is properly protected and the lack of i.d. to vote is a HUGE excuse for fraud. Demanding the reduction of CO2 is a 'death sentence' if it's taken too far. There is a lower limit you know? Calling for someones death is...
  16. kellys_eye

    Help diagnosing Trinitron KV-32FV27

    The voltages are meaningless without a schematic to compare them to. Clearly the FB is working else you wouldn't have the raster. What do the internal controls do - is there a test pattern it can show? Is your input signal ok?
  17. kellys_eye

    Artificial Intelligence

    I'm seeing the usual trend in this thread now. Neither side will accept what the other states. Most right wing proponents will have read and thought about left wing policies/processes and seen how they are always detrimental to the individual - i.e. reduction/removal of rights and freedoms...
  18. kellys_eye

    Artificial Intelligence

    The plastic isn't the problem - it's the morons that throw it into the sea (or on the ground) that's the problem. Place the blame where it belongs. There's nothing wrong with plastic per se. Nice - we agree. However the increasing CO2 is also causing the globe to re-green. A POSITIVE for...
  19. kellys_eye

    Spectrum analyser Equalizer project how to go about it?

    No probs - except an email address issue??? See my PM reply.
  20. kellys_eye

    Spectrum analyser Equalizer project how to go about it?

    They can be connected in cascade to any number you want. Each 'band' requires it's own filter but the filters themselves have a 'band WIDTH' which, if you make too many, result in them overlapping and the columns will start to dance in pairs rather than individually. This is where a digital...
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