Search results

Search Forums New Posts
  1. AnalogKid

    How do I easily convert a stereo power output to mono?

    The line-level L and R signals are not available to be summed at the input to the amp. It sounds like the only option is to combine the signals at the amp output, and at 50 W output there could be considerable harm done. This board basically is two switching power supplies with full...
  2. AnalogKid

    simple clock divider by 10

    If the input signal is a fixed frequency, this can be done with a 7414, 4093, 393, or, of course, an LM358. ak
  3. AnalogKid

    Powering oscillated peizo buzzer

    No part number, no photo, no schematic - no idea. ak
  4. AnalogKid

    simple clock divider by 10

    I'm still confused. First, why do you want to divide the frequency with an analog circuit? There are many ways to do this, but rambling through all of them with no direction just seems like a waste of time. Second, if this is your first choice, how is a microcontroller that needs to have...
  5. AnalogKid

    Guitar Pedal

    I think the schematic has errors, but it might be that you are assigning switch pins in a non-traditional pattern. The common terminal (Pole) for a DT switch should be in the center between its two closed contacts (Throws). Please redraw the schematic indicating which contacts are the poles...
  6. AnalogKid

    Having trouble analyzing this power supply..

    Your schematic ius very poor, and makes it impossible to answer your question. 2N0000 is not a valid part number. Diodes generally start with 1N.., and 1N0000 is not a valid part number. 33 mf means 33,000 microfarads. Is this really what you mean? What are the voltage ratings for zener2 and...
  7. AnalogKid

    simple clock divider by 10

    Yeah, I remember an old UJT frequency divider circuit that is basically the same thing. If the frequency were low enough you could use an LM393. Not the traditional choice for frequency division... Somewhere on the innergoogle is an analog clock based on this - a digital display clock with...
  8. AnalogKid

    simple clock divider by 10

    Space is a problem, but you don't need to go with surface mount parts? You want to divide a digital clock signal frequency by ten, but without dividing it by 10? ak
  9. AnalogKid

    Problems with transistor on test circuit (beginner)

    Glass houses... No, the transistor will not switch on. The transistor is configured as an emitter follower. It will not saturate, so there is no switching and no "on". However, the OP does not want an emitter follower, he does want a switch, and his circuit is not correct for that. There is...
  10. AnalogKid

    Need help identifying switch

    It definitely has a rotary handle, but internally it could be actuating a linear slide switch. That would account for the lack-of-depth. Multi-position slide switches are catalog items from Alps and others. Should be some options at DK and Mouser. ak
  11. AnalogKid

    Need help identifying switch

    It looks like a variation of a rotary switch called a lever switch. Can you open up the unit? ak
  12. AnalogKid

    Problems with transistor on test circuit (beginner)

    What is it you want this circuit to do? ak
  13. AnalogKid

    Positioning of Electrical Thermal Relese (RTC)

    The velocity of the air in the duct is everything. That whole "hot air rises" thing is irrelevant whenever a fan is involved. So if the linear air velocity is anything above about 0.5 m/s, the sensors can go anywhere. ak
  14. AnalogKid

    Noob question: Multiple LED modules in parallel or in Series?

    15
  15. AnalogKid

    simple clock divider by 10

    Or, a 74HC90 (or any other 7490 variation) can divide the input frequency by 10 and produce a symmetrical output. ak
  16. AnalogKid

    Noob question: Multiple LED modules in parallel or in Series?

    Most of your guesses are correct. What is the maximum output current of the supply - and its complete model number? ak
  17. AnalogKid

    Newbie on a trimmer/trimpot watts and temperature for a laser driver

    Using multiple resistors in parallel or series to distribute a thermal load works very well, but only if the resistors are closely matched in value. If they are 10:1 apart in value, they will be 10:1 apart in heat load. ak
  18. AnalogKid

    Apple vs the FBI

    I don't understand your question. Knowing about a technology and using it are two very different things. ak
  19. AnalogKid

    Apple vs the FBI

    Such an obvious move that I have to wonder what else is in play to prevent that from working. As I alluded to above, it is possible to examine the surface of a magnetic disk with an electron microscope and "read" the data. The same thing is possible with a memory chip, although I think that...
  20. AnalogKid

    Positioning of Electrical Thermal Relese (RTC)

    What duct what duct shape what temperature what gas or liquid what velocity what ambient environment what sensor temperature range what adhesive what adhesive temperature range
Top