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  1. crutschow

    power

    Did they state what the purpose of this was? Without that, it's not reasonable to do a design, and it's a poorly asked problem.
  2. crutschow

    High current, 40 A to 100 A, current limiting devices other than a resistor

    What's the problem with using one or more of those power resistors? Why does your title say "other than a resistor"?
  3. crutschow

    OLD Tektronix Oscilloscope Identification

    It's worth whatever you can get for it on eBay, depending upon whether it works or not. Since it's a rack version it's likely not worth as much as a stand-alone unit.
  4. crutschow

    Not Understanding Arduino useage versus traditional Electronics useage in Devices.

    If you not interested in electronics as a hobby, and want to make money with electronics repair, then one of the few things I can think of is working for the "Geek Squad" at Best Buy. :rolleyes: Do you have any other interests?
  5. crutschow

    Not Understanding Arduino useage versus traditional Electronics useage in Devices.

    It's true that the expertise to repair electronic circuits down to the component level is likely not much needed much anymore, but the knowledge to design and use electronic circuits (both analog and digital) will always be needed.
  6. crutschow

    Not Understanding Arduino useage versus traditional Electronics useage in Devices.

    Quantum computers are, at present, very exotic devices that require complex laboratory equipment to function, and are intended to solve specific types of problems that standard digital computers cannot readily do in a reasonable period of time. It's unlikely the will ever be used in a home...
  7. crutschow

    Not Understanding Arduino useage versus traditional Electronics useage in Devices.

    It still just a computer, albeit a theoretically more powerful one.
  8. crutschow

    Not Understanding Arduino useage versus traditional Electronics useage in Devices.

    It's not just "Consumer" devices, it's any devices being built. Advances in technology won't significantly change what I said. If you don't understand at least the basics of analog electronics, the computer is of limited use. :rolleyes:
  9. crutschow

    Not Understanding Arduino useage versus traditional Electronics useage in Devices.

    Not really. You still need to understand "electronics" if you want to interface the computer to the part of the outside world which is mostly analog. Note that binary "digital" signals outside the computer are basically two-level analog signals and you must understand the analog characteristics...
  10. crutschow

    turbo jet fan [DYI] - feedback appreciated.

    What is a "turbo jet fan (enclosed)"?
  11. crutschow

    Stepper Motor Locks Up at Speeds Above 8mm/s

    You appear to be exceeding the motor output torque limits for that high a speed. The Y-axis motor may be driving a higher load than the Z-axis motor.
  12. crutschow

    How do I run a 24VAC solenoid off of a couple of 9V's?

    Another newbie necro post. This thread is over 10 years old, so I doubt the TS is interested in another solution. :rolleyes:
  13. crutschow

    Audio amp modification

    I should have noted that half power is just -3dB in apparent sound loudness, which is generally just a barely noticeable change, so perhaps not as much is it would seem. 10dB or a 10 times change in audio power is the value that people usually perceive as a doubling or halving of the volume...
  14. crutschow

    Audio amp modification

    If it's a donated amp and you have nothing to lose, then you might try hacking it allow one channel to output the full frequency range, and use that to drive the speakers. It would be half the power, but may still be sufficient for your purposes. Do you have the full schematic that shows the...
  15. crutschow

    Audio amp modification

    No. The power from one output will be shorted by the other output and you will blow the amps. It might be possible to use a speaker crossover circuit in reverse to combine the two outputs, but that would be problematic and might still blow the amps, Why are you trying to replace an amp that...
  16. crutschow

    Audio amp modification

    Still not clear exactly what you want to do, and why you want to do it. :oops:
  17. crutschow

    Audio amp modification

    What "outputs" from where?
  18. crutschow

    Not Understanding Arduino useage versus traditional Electronics useage in Devices.

    It's not analog electronics, but it is digital electronics. It still uses electrons and transistors to generate the result. The difference is that digital electronics can use digital words to represent analog values and perform analog type functions on those digital values. The digitized...
  19. crutschow

    Not Understanding Arduino useage versus traditional Electronics useage in Devices.

    Deleted
  20. crutschow

    Help Reading a Schematic

    Can't read it it if we can't see it. :rolleyes:
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