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  1. bigkim100

    Pseudo randomness based on this

    So the op amp constantly runs it and changes the voltage? what is the standard Vin for this (other than the operating voltage of the op amp)?
  2. bigkim100

    Pseudo randomness based on this

    Holy Crap Bertus!!...Im breadboarding this tomorrow. I can only guess that this is infinitely expandable!!!(within reason)
  3. bigkim100

    Simple Waveform Generator Help

    I remember the ETI Canada, that was actually a reprint of ETI EUs edition, with absolutely no consideration if parts were available in Canada. They published a beautiful Ozone generator, that used a Torroid to generate the voltages needed back in the day when Torroids were not generally used...
  4. bigkim100

    Pseudo randomness based on this

    Thanks to Bertus, he has sent me to this schematic.(see attachment, simple random sound) Taking into consideration my fevered analogue driven mind is there any way to make it a PSEUDO randomness (when I say random I get jumped on that this way is not TRULY Random) to it without a bucket of...
  5. bigkim100

    Simple Waveform Generator Help

    Bertus, this takes me back to my youth building circuits from Elementary Electronics Popular Electronics and ETI (when I could find it). The Pinnacle of ,my building from then at 9 years old was a Fluorescent alarm Clock , that used display tubes from Jameco and a huge IC that cost me a fortune...
  6. bigkim100

    convert speaker output to microphone input

    I also found a 2 resistor circuit that is also very simple. It takes me back to the 70s, making a cable from my radios earphone jack to my recorders Microphone input (no aux input on my Sears unit) to record my songs. Thanks Bluejets!!
  7. bigkim100

    convert speaker output to microphone input

    Need to convert speaker output to microphone input on a board. I dont need high quality sound...just something quick and dirty. Thanks in advance
  8. bigkim100

    Simple Waveform Generator Help

    Is it possible to do it in a sloppy analogue wave having a 555 driving a 4017, stepping thru various resistors that change the output. This would be only semi-random, with low quality components to make the selection relatively random. To answer this, you will need to step into my...
  9. bigkim100

    Simple Waveform Generator Help

    What is a generator that automatically produces a user selectable voltage sweep called????
  10. bigkim100

    Simple Waveform Generator Help

    HOLY MACKAREL Bertus!!!..thats an oldie!!
  11. bigkim100

    Simple Waveform Generator Help

    Thank you very much AnalogKid
  12. bigkim100

    Simple Waveform Generator Help

    Thank you very much Bertus
  13. bigkim100

    Simple Waveform Generator Help

    Thank you very much AudioGuru
  14. bigkim100

    Simple Waveform Generator Help

    https://www.instructables.com/THE-SIMPLEST-FUNCTION-GENERATOR-BUILT-ON-A-BREADBO/ This is an article about making a single chip Function Generator Only the first stage is adjustable. How do I adjust the 2nd 3rd and 4th generator in it, or can I? Where can I add pots for that stage? Can the...
  15. bigkim100

    Frequency generator, level adjust

    Thanks Analogue
  16. bigkim100

    Frequency generator, level adjust

    I was just wondering if the 2 transistor attenuator stage was powered from a different supply than the actual oscillator stage. What voltage does the attenuator require?
  17. bigkim100

    Frequency generator, level adjust

    This is an excellent reference, but I have a question Looking at figure 4 of the frequency generator/attenuator website, can the actual attenuator be run from 9v, or should it be lower?? I see the power supply of the attenuator is not shared with the frequency generator....I think, is this the...
  18. bigkim100

    Power supply for CB

    That is amazing!
  19. bigkim100

    Freq Generator

    Please note the word "almost"
  20. bigkim100

    Frequency generator, level adjust

    This is an excellent reference, but I have a question Looking at figure 4 of the frequency generator/attenuator website, can the actual attenuator be run from 9v, or should it be lower?? I see the power supply of the attenuator is not shared with the frequency generator....I think, is this the...
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