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  1. dorke

    Psychic amplification apparatus - calculating inductance??

    Put in "professional terms": - Don't be such an electron !:mad: - Say what...?:confused: - An all negativity dude...:eek:
  2. dorke

    Tek 2235 Good Focus but High Intensity

    Any effect of horizontal modes A,ALT,B ? Have you tried operating the Z-axis ? Do you have another scope to debug the faulty one?
  3. dorke

    Psychic amplification apparatus - calculating inductance??

    Ross, If the above statement is accurate, I'm sorry to let you know that your chances of building a working amp. like this are absolutely zero! Worst than that, this kind of amp (RF-reciever),would fail many who don't have practical RF skills...:( Besides, you need equipment that you most...
  4. dorke

    How do I figure out these resistors?

    Taking that circuit as a theoretical drill only. Correction: For the relay to be on, we need the Tr. in saturation. (deep saturation that is ,not just on the verge of it) The Beta we need is the minimum one (take into account temp,IC current, etc.) for TIP41C,Beta would be 15. BTW, this Tr...
  5. dorke

    MC6802 "WAI" Instruction

    Glad to be of help, Reminds me of the days I did some assembly language code for the Intel 808x and 8018x for hardware debugging,I sure don't miss those days...:rolleyes: BTW, If you find out how the Bandit cheats(and it does) that would be interesting stuff ...
  6. dorke

    Replacement Capacitor

    Guy, Just for general knowledge: The Spark Suppressor Cap is the big metal one you still have in the mixer (connected in parallel to the resistor and the centrifugal switch). The double cap you took out is for RFI/EMI noise suppression on the input AC lines. Enjoy the meals as before...and...
  7. dorke

    Replacement Capacitor

    Good news, Where was the open wire at?
  8. dorke

    Replacement Capacitor

    Guy, Do you have a DMM :700 AC volts and Resistance measurements? or Do you have a live line tester?
  9. dorke

    Screamingly easy o-scope problem

    Wrong! The initial display problem had nothing to do with the probes being faulty!
  10. dorke

    Instruments

    What company? What is the input DC,AC?
  11. dorke

    Screamingly easy o-scope problem

    Look at the PIC(Purple): 1.Select the "A&B internal" according to the input ch. you are connecting to. 2.Adjust "Trig level" till the trace freezes.
  12. dorke

    Replacement Capacitor

    Guy, 1.It is a mixer not a food processor ;) 2.the cap is definitely an RFI filter cap ,the Mixer should work without it. 3.The Mixer is fed by only 2 ac line wires (L,N) 4.I see 4 wires going to the motor,is this correct? 5.look at the new pic ,please fill the green (?)
  13. dorke

    Replacement Capacitor

    Guy, Look at the pic and please confirm the question marks
  14. dorke

    Replacement Capacitor

    Guy, Is the unit working as it is now? How many speeds does it have? Any Variable speed control?
  15. dorke

    Replacement Capacitor

    Obviously,that was just an example of " multi-caps". Guy's capacitor are not of motor caps(values too small)! They are for RFI suppression ! Look at BS 613 "title". So, If there aren't any other defective parts in the food processor it should work with the "caps out of board" as is. May cause...
  16. dorke

    Replacement Capacitor

    This is a dual cap in one package 0.1uF, 0.01uF Look at the photo for other examples "multi-caps" in a single package . In these the colors tell which is which . This is a dual cap in one package 0.1uF, 0.01uF Look at the photo for other examples "multi-caps" in a single package . In these...
  17. dorke

    Portable USB phone Charger Design Help

    The 5V USB adapters for phone charging are dirt cheap-that is the way to go , not build your own. A_Dude has very little experience if at all, experimenting on a his phone isn't the way to learn... unless he seeks a budget hole. a word of caution is a must here... Can you be sure what he...
  18. dorke

    MC6802 "WAI" Instruction

    Yes you are: The NMI (non maskable interrupt)is the key here . It's service routine is at 7508 from which jumps to 750F and go on. BTW, what is this code of?
  19. dorke

    Screamingly easy o-scope problem

    What do you need to measure? What is so special about the probe you want? Trigger questions? bring them on...
  20. dorke

    Screamingly easy o-scope problem

    That "something" is the voltage division ratio of the probe. I have never seen one with 3 positions only 2 (1x,10x). post a pic of it please. BTW, glad to help you, but Eric your are "rusty"...;)
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