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  1. crutschow

    Capacitor between collector and emitter help

    What do you mean by "capacitor matching"?
  2. crutschow

    New TV or Router?

    Alternately, the TV may just be insensitive to the WiFi signal and a WiFi booster close to the TV may help.
  3. crutschow

    New TV or Router?

    I can't see why that would be a problem, since all the surge protector does is clamp the AC voltage peaks above a certain voltage.
  4. crutschow

    New TV or Router?

    What do you do to reconnect the WiFi to your TV?
  5. crutschow

    Transistor as a switch

    Someone in academia apparently defined it differently between the two type of transistors just to try to confuse the rest of us. :rolleyes:
  6. crutschow

    Transistor as a switch

    Yes, a modern Darlington would likely be a single-chip.
  7. crutschow

    Transistor as a switch

    I have been given insights about how others view BJT saturation, but that has not changed my understanding of saturation, which is a fairly simple state of operation for the transistor.
  8. crutschow

    Transistor as a switch

    And what transistor parameter values did you use for that? I don't see why there's a quibble about when a BJT is saturated. What is the definition that it's when the Vce is less than Vbe not correct?
  9. crutschow

    12 volt delay timer

    Also Rad (approximately).
  10. crutschow

    12 volt delay timer

    Rad.
  11. crutschow

    12 volt delay timer

    Sick?
  12. crutschow

    12 volt delay timer

    A timer module such as this, should work for you.
  13. crutschow

    Transistor as a switch

    No. Just your pedantic attitude. Sorry, I ruffled your academic feathers.
  14. crutschow

    Transistor as a switch

    There you are going all academic on me again. :rolleyes: I'm not talking about saturation current or drift velocity or any transistor physics. I referring to when the transistor is considered to be saturated when used as a switch. That saturation point of a BJT transistor is not determined by...
  15. crutschow

    Transistor as a switch

    What's not true in what I said?
  16. crutschow

    Transistor as a switch

    That's not what "saturation" means for a BJT. It just means the transistor is fully on where the Vce is less than Vbe, and can occur at any collector current. It has nothing to do with the transistor limits. Interestingly, saturation has a different meaning for FETs (just to confuse us). A FET...
  17. crutschow

    Dual Power supply switch with 5-10 sec delay

    Certainly the TS could experiment with the simple capacitor circuit and see if it meets his needs. If not then perhaps add the diode and transistor.
  18. crutschow

    AC audio signal superimposed on to DC question

    I also like the visual to help me understand a function. Below is a display showing a 0.4Vpp, 10Hz sinewave added to a DC level (square-wave) that changes value every half second between 2V and 3V. Does that help?
  19. crutschow

    Dual Power supply switch with 5-10 sec delay

    All sounds a little dicey by depending upon the load and where the relays actually drop out. Note that 1.2V is the minimum, not the maximum voltage (which is not given) for the relay to open. I would expect significant variation in that voltage, depending upon mechanical and spring tension...
  20. crutschow

    Dual Power supply switch with 5-10 sec delay

    It's brute force crude, but I like it. :D The one caveat is that you have to make sure there is a path for the current when the B supply goes off that will turn on RLY2, for example if the B supply were simply just disconnected. To avoid that possible problem, below is the simulation of a one...
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