Search results

Search Forums New Posts
  1. Delta Prime

    Help requested to identify common emitter, collector base bjt circuits

    Well said! This is the way I see it in my head. My analogy would be a popular one. A mechanical switch thrown to the on position dead solid contact no wiggle room you know it's not going to pop out of contact. The mechanical switch caught in between on and off in the middle Or slow turn- on...
  2. Delta Prime

    Help requested to identify common emitter, collector base bjt circuits

    No one suggested you didn't study. Nomenclature! BJT transistors operating as a switch. You turn a mechanical switch On You drive a transistor into Saturation Same thing . You turn a mechanical switch off You drive a transistor into Cut Off Same thing. Transistors must be driven fully on or...
  3. Delta Prime

    Help requested to identify common emitter, collector base bjt circuits

    Not a problem this is more specific to your application. https://www.petervis.com/GCSE_Design_and_Technology_Electronic_Products/Transistor_as_a_Switch/Transistor_as_a_Switch_for_Motor.html
  4. Delta Prime

    Solder smd

    I prefer the "easily melted" Tin 63%/Lead 37% or "eutectic"mixture of Sn63%/Pb37% rosin core flux solder wire . paste. As above try different manufacturers flux.
  5. Delta Prime

    short caps of electrolytics fault goes

    Zz
  6. Delta Prime

    short caps of electrolytics fault goes

    I must warn you. I am incapable of such perfection. ;):p
  7. Delta Prime

    short caps of electrolytics fault goes

    Any and all information please. Link? Manufacturer name? Development board ? Breakout board? Bluetooth ? USB power supply? Possibility of photos both sides PCB?
  8. Delta Prime

    electronic Tesla valve (ETV)

    Well done! :p
  9. Delta Prime

    Help requested to identify common emitter, collector base bjt circuits

    I hope this helps. https://eng.libretexts.org/Bookshelves/Electrical_Engineering/Electronics/Book%3A_Semiconductor_Devices_-_Theory_and_Application_(Fiore)/04%3A_Bipolar_Junction_Transistors_(BJTs)/4.7%3A_BJT_Switching_and_Driver_Applications
  10. Delta Prime

    Generac Smart Management Module Dead

    ;)
  11. Delta Prime

    The T-Board keyboard. And my first PCB! (Designed with OsmondPCB.)

    Why do you call it a T board (just kidding) is it possible for a demonstration? In no way do I mean to put you on the spot. I couldn't carry a tune to save my life. It does look slick. congratulations!
  12. Delta Prime

    Testing Operational Amplifiers

    Grab yourself a data sheet the 747h is a dual operational amplifier that means two in one package. If you can't find a data sheet I'll try for you. Below does not refer to metal cans op amps but the process is the same you need to know the pin outs. Good luck to you. Testing a 741 IC It is...
  13. Delta Prime

    And now something weird

  14. Delta Prime

    electronic Tesla valve (ETV)

    I am flattered, you don't have to look up... to me. I'm trying to work on my humility. I set myself up for you. Make it funny. Oops... did it again. :cool:
  15. Delta Prime

    Can you please tell me how am i supposed to replace these fuses ? They are mounted on the pcb surface and i don't have a hot air station.

    Did you try using the crystal ball :p If you have a junk board or electronics that do not work any longer I would practice on that even if it's through hole with the soldering iron I would apply more solder then use solder wick it will wet a lot faster and suck it up (one side) the other side...
  16. Delta Prime

    electronic Tesla valve (ETV)

    Our forums? So it begins... It takes a community.Grab your pitch forks everyone let's hunt him down and burn'em on the stake!! :oops::p;)
  17. Delta Prime

    My T-Board Keyboard, my first PCB, and my experience with OsmondPCB...

    Well how dare you,you little kitten.:D Whatever works brother, I use them all and it got kicked out of all of them this is my punishment maker pro. I call it misfit Island! (Just kidding) I usually hang out at physicsforms.com but a lot of people take it very seriously (as they should) and I...
  18. Delta Prime

    Servo Amplifier

    Then why is schematic? Also. It is a very expensive servo amplifier. And it falls under the control of. International Traffic in Arms Regulations (ITAR) I'm not touching this one. I hope I am mistaken But every time I Google it (ITAR) shows up with it.
  19. Delta Prime

    Standards....

    To paraphrase Horace Mann Be ashamed to die, if you've not won some small victory for humanity. That should be a standard!! Now... if you'll excuse me, back to the laboratory!
  20. Delta Prime

    Standards....

    With my mindset I see it differently. Without standards anarchy would raign supreme. ISO has standards for everything from screws (4026), drills (2306), and beers (67.160.10) to cigarettes (126). If you're too conduct laboratory experiments and make a breakthrough in technology how would other...
Top