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  1. S

    Trying to connect 2 parts together, what should I use?

    The 'pitch' is the distance between the pins.
  2. S

    Help need for amp. hum

    You probably have a grounding problem. I'd recheck my grounds. I'd also try to see if anything outside your circuit is inducing noise. A motor, flourescen light, or some other electrical noise generator on the same power-input line.
  3. S

    resistor blown frequently

    I think what Colin is trying to get you to understand, is that because you already replaced your resistor, you may have replaced it with one that has the same resistance, but does not have the original wattage capability. If that is true, your resistor keeps burning-up, because it can't handle...
  4. S

    3-1 HV Connection Wiring Question

    Do it neatly in the event you ever need to repair or re-wire it. Your three wires in to either the male or female connector, and jumper the the pins on the other connector to your one-lead wire. (wire/solder the three together). I say again. Those circular connectors come in a wide variety...
  5. S

    resistor blown frequently

    That blue component is a varistor, which is supposed to absorb large voltage spikes. The designers obviously expected initial in-rush voltage spikes, and that was their effort to deal with them. If your TV is otherwise working, I suspect other components in the circuit are wearing-out through...
  6. S

    please help me..

    Like davenn, I suggest you Google search robotic projects. I'd find one small area of specialty in the robotics field, and persue something that interests you. A robotic arm movement, light or dark recognition to trigger a response, programming a robotic function if that's your area of interest...
  7. S

    3-1 HV Connection Wiring Question

    I would suppose you could input your three wires to one of the circular connectors, and connect the pins together at the other side of the connector for a single-wire lead. Is there something here we're not understanding?
  8. S

    Compatible solder tips?

    Check the Weller website. They'll list the solder tips that are compatible with your iron.
  9. S

    relay clicking in & out on technics SU-V2-XE amplifer

    I can't argue with Colin because I can't test the circuit myself. He may be right on the money. My long post is my input for verifying that. (Which you may be leery of doing anyway). If Colin's right, you will have to take the amp to a shop for troubleshooting and repair because it'll take...
  10. S

    relay clicking in & out on technics SU-V2-XE amplifer

    Your relay is opening and closing, so reading across the 'coil' will just give you an ohm-reading of close to zero (no resistance), which is normal. (You ONLY try that with power to the amp disconnected from power) You ONLY use the ohm meter function with all power turned off. The 'coil' is...
  11. S

    3-1 HV Connection Wiring Question

    I agree your terminal strip was a good idea, my second choice is the one ADRT suggested. Those are military-type circular connectors that are readily available from a lot of vendors like Allied, Newark, or Mouser. They come in small or large diameters, just make sure you get the correct...
  12. S

    night vision binoculars

    I wouldn't even consider using a flyback transformer to do this. Why don't you Google the Model number of the device, and see what's out there. Somebody may have the parts you need, or can offer advice for an alternative that they made work.
  13. S

    relay clicking in & out on technics SU-V2-XE amplifer

    Yes, it's probably the relay, but it could also be one of the small electronic components attached to the relay coil input. Do you have a volt/ohm multimeter? Do you see any burned components near the relay that might indicate an electronic component failure? You should be able to find a...
  14. S

    Piezo Material

    I'm thinking your 'piezo-tape' is only capable of limited response, especially when you've glued it to an aluminum surface. You may get it to vibrate more with added power, but I'm thinking maybe you should be looking at a piezo element with more substantial capability. Also, you are going to...
  15. S

    74HC logic output signal

    I'm thinking that your 70MHz scope is overkill for this project, and that you're fine. When I went from a 100MHz Scope to a 300MHz one, all the detailed stuff that was always there, suddenly became visible when I had never seen it before. Worried the heck out of me. I thought my circuit went...
  16. S

    Help with transistor radio.

    It doesn't sound like you have any experience with electronic repair. I keep my dad's old transistor radio (he's 85) going because it's usually the capacitors that give out (yeah, you might have a bad transistor, but the capacitors are the first thing to check). When I was in high school, and...
  17. S

    74HC logic output signal

    Put a 300Mhz scope on that signal, and you're going to be shocked at what you see. The jitter alone will make you rethink everything you think you know. *steve* only gives accurate information, so you can take what he says to the bank. My input here, is that all test and measurement equipment...
  18. S

    Ive just bought US$155,000.00 of test equipment :-O

    My company discovered that if they keep me around (I'm an old guy who started-out repairing HP gear), and I can keep their $30,000 HP unit operational and calibrated, they don't have to go out and buy the present-day $180,000 equivalent. Considering the extent of their test and measurement...
  19. S

    Ive just bought US$155,000.00 of test equipment :-O

    As a guy whose plant still heavily uses the old HP stuff and asks me to keep it repaired and calibrated, let me say congratulations. People on-line complain about repair parts availability, but there's a lot of it left out there world-wide. HP made their stuff to last, and designed it to be...
  20. S

    Ive just bought US$155,000.00 of test equipment :-O

    As a guy whose plant still heavily uses the old HP stuff and asks me to keep it repaired and calibrated, let me say congratulations. People on-line complain about repair parts availability, but there's a lot of it left out there world-wide. HP made their stuff to last, and designed it to be...
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