Search results

Search Forums New Posts
  1. S

    What happened to EinarA?

    *steve* deletes all my annoying posts. He must like you, CDRIVE (I still think it's beard envy)
  2. S

    Does chocolate work as thermal paste?

    My input is my annoyance with people who fail to electrically isolate the device from the heatsink when they re-install a replacement. They don't like getting the silicon thermal compound all over their fingers I guess. They knew they had a bad device, they just can't understand why the...
  3. S

    CD4027 Or 74HC73

    The 4027's been around a lot longer than the 7400 series High-Speed CMOS chip. The original design probably used what was available at the time.
  4. S

    Uphill or downhill angle sensor for car

    I used to use mercury switches for something like this, but with the technology nowadays, somebody here will probably give you a modern-day device. It would probably help if you specified how deeply you want to get into circuitry for this. I don't know if you want simple, or want to tie this...
  5. S

    Today's Giggle :)

    Practical application of Harald Knapp's observation. In my 43 years as a tech, I've learned if the tech is good, he stays a tech. If the tech costs the company money, he is promoted to management to keep him/her off the equipment.
  6. S

    VHF Radio (s) problem.

    If you powered your transmit with the antenna not hooked-up at any point, you may have blown your final output transistors. You can run all the tests suggested above, but as davenn noted, you probably didn't blow the speakers. You're probably going to have to end up taking the radio to a...
  7. S

    help with potentiometer

    The place I use to build custom potentiometers (they do have their own line of pots, one of which my already fit your needs): Maurey Instrument Corp 5959 W. 115the St Alsip, IL 60803
  8. S

    help with potentiometer

    OK. If the pot shaft is tied to a gear-driven actuator, the 'turns counting' dial is out. Can you use the 3-turn Bourns 830-11502? If not try Googleing other 3-Turn pots from other manufacturers (Clarostat, Vishay, BI, or others). I'm assuming this is some industrial application, like a...
  9. S

    help with potentiometer

    I did a little more checking. If you're wanting to go the other way, and example of a 3-Turn 5K pot is the Bourns 830-11502 (but it's physical dimensions are different from the 3540S. Bourns is not the only manufacturer of pots. If you don't find what you want, somebody here will help you to...
  10. S

    help with potentiometer

    You said you don't have any electronics knowledge, so I'll do some of the leg-work for you on this one (but it'll help if you do more of your own). Check the Bourns potentiometers on the Newark Electronics website if you're having difficulty navigating the Bourns website. As I said, you may...
  11. S

    help with potentiometer

    I don't recognize the -762- reference, maybe this is a custom pot of some type? The 3540S series are usually 10-turn pots. The 0604X reference is the date code, 2006 4th week of manufacture. If I were you, I'd check the Bourns website, and start searching for what you need. I doubt they make a...
  12. S

    Sleeping mask

    I still can't get my X-Ray Glasses from the 1960's to work.
  13. S

    Need help about car stereo

    Start simple. The blinking red LED means you have power to the player. Are you sure of your connections concerning all other wires in the power harness? Any fuses internal to the player? Make sure your hook-up is correct, then you'll move on to the power supply section.
  14. S

    120v Relay Flickering on and off very quickly ?!

    You'll get more help I'm sure to follow. My observation at first glace is that you have a module running a DC relay inside the grey box, and are adding an AC relay to the circuit. Where you apply your power is going to make a difference.
  15. S

    Name this guitar tube amp component, and do I need it?

    Yes, 'under the chassis', means looking at the actual wiring connections to the bottom of the tube sockets. We're wondering if someone modified the wiring, to eliminate the 12AX7 tubes by replacing them with solid-state components (like transistors). A 'schematic' refers to a wiring...
  16. S

    Name this guitar tube amp component, and do I need it?

    Yes, come to think of it, I've seen some old tube amps with some of the unit converted to solid-state (by a 'mucker', as noted by GonzoEngineer). You might want to look under the chassis, and see if anybody added any additional parts to replace the old 12AX7's, before replacing them in the...
  17. S

    Name this guitar tube amp component, and do I need it?

    You may get some info from someone else on this site that knows more about guitar amps. I've never seen a piece of gear with tube sockets that weren't used. If a socket is there, a tube probably ought to be in it. 12AX7 is the U.S. equivalent of the British ECC83. Either tube will work...
  18. S

    What happened to EinarA?

    I feel a temper tantrum coming on, .... (That's a joke, for all you engineers)
  19. S

    World's Smallest Torch

    Contact 'Q', He's probably in Scotland now, waiting for the next James Bond movie. Why reinvent the wheel.
  20. S

    My New Toy

    Watch it, next she'll suggest a bicycle built for two. (WITH the cart on back). p.s. *steve*'s beard is prettier, but CDRIVE's is more distinguished.
Top