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  1. S

    Frankenstein's Components.

    I did the same thing with my 1970's era vintage arcade pinball machine. When the old cloth-wrapped relays burn-out, I use the ice cubes and they work great. (Plus, I have sockets on those for future easy replacement).
  2. S

    Dryer malfunction

    I would think your evaluation is pretty good. Burned areas on a board mean over-heated and likely damaged components. Are you intending to find an entire replacement board, or do you have skills in troubleshooting and identifying damaged components? It's often much cheaper to identify and...
  3. S

    capacitor ESR table - different values from different manufacturers?

    My experience is that mfgrs are CONSTANTLY changing materials in their caps. EVEN in the middle of production runs. ALWAYS in an effort to save money, and sometimes to substantially improve electrical characteristics. I'm pretty sure a particular production run has to meet the spec sheet...
  4. S

    hospital yet again

    My dad just hit 85 years old. He lives close to one of my brothers. He's got medical problems and the docs warned my brother a few times already that 'this last problem' could very well be one that there was nothing they could do to save him. That started about 10 years ago. My dad hears what...
  5. S

    hospital yet again

    Don't you DARE give-up. A lot of people depend on you besides us. You've got some clueless doctors. That isn't unusual. That doesn't leave you free to stop fighting. Don't get despondent, get mad and figure-out a way to have some other doctor look at you. You aren't going to let the mediocre...
  6. S

    HUH?????

    Never been that lucky. Every boss I've had since the 1970's has been a 'management' person whose priority is his budget. None of them have had an electronics background. The way of the business world now you know. We the willing, led by the unknowing, have been doing the impossible, for the...
  7. S

    Measuring distance of many targets

    Pretty tough in a city environment with clutter. Are your 'target' vehicles emitting any detectable signals of their own, or you're just trying to detect any unspecified vehicle that approaches? Your original idea of a phone may not be too far off the mark. What else is out there that might...
  8. S

    HUH?????

    Watch it, he'll probably be my next boss. Imagine what the guy went through who said he was going to transmit telegraph key signals wirelessly.
  9. S

    Measuring distance of many targets

    On specific trajectories or random ones. Laser range-finder? Ultrasonic range detection? Fixed emitter or moving? Multiple emitters or single? Ground-clutter obstacles or line-of-sight? The more we know, the more specific the recommendations. Would a fixed trip-switch like a tape-switch be...
  10. S

    Measuring distance of many targets

    'Targets', kind of conjures-up a question about what you're targeting.
  11. S

    hospital yet again

    Get well soon ! Your wife wants you back, but we NEED you back.
  12. S

    Sound getting out from a single ear, tested with more than one pair of headphones

    Here's my input: If one of the contacts on the output jack davenn already told you about is bent or somehow misaligned, that could prevent one side of your headphones from working. The problem I had recently with my computer set-up, was that I unintentionally pushed the headphone plug into the...
  13. S

    IC trying to identify from ST

    Did you check the STMicroelectronics website? Manufacturers usually have a page in their data search functions with a break-down of their chip identification methods/codes.
  14. S

    Mains Timer off delay

    I don't know where you're located at, but there are just as many delay-on, as delay-off TDR's (Time Delay Relay) Have you checked specifically for the title 'time-day relay' or are you somehow unintentionally limiting your information search parameters?
  15. S

    WARMING METHOD FOR LAMP ANALYSIS

    I'm not sure if you're trying to run this as a test, on a lab bench. In which case I would suggest buying a variable heat temperature bath. Or if you're trying to run this in an on-going field operation. What exactly are you trying to do? Are you trying to find a 'zero' point for a calibration...
  16. S

    AC plug wires are reversed and Above ground potential

    I don't know what the heck is going on here, but I'll submit my two-cents worth. 1) When electricians wire power outlets, they drop the 480VAC three-phase from the outside power line, into three 120VAC single-phase lines. (If you're in the U.S.) It's called 'balancing the load', of turning one...
  17. S

    Unknown accessory

    Yeah, more information please. It looks like your 'pin connector' MIGHT be an 'RCA Plug' commonly used for audio/video. I can't really get a good look at the other end of the cable. I'm wondering if maybe it might be a 'load' resistor' somebody made-up for test situations, Do you read a...
  18. S

    Resistors

    It would be nice to see your circuit. With what little info you've supplied, I'm thinking you should be looking into zener diodes.
  19. S

    help finding relay

    The last HP part number system was the 8-digit number. Your relay is Hewlett Packard 6090-2093. qService on eBay is listing 40 of your relays for $44.50 with $7 shipping. Lot 40PCS HP-Agilent 6090-2093 Reed Relay-NOS Look. The Chinese are buying U.S. obsolete parts and are cornering the market...
  20. S

    help finding relay

    That is a Hewlett Packard part number, became Agilent, now known as Keysight. It was made for HP and has no other cross reference number. I did a quick check for availability. There are lots of them out there, anywhere from $1 each to $163 each. Some guy has 40 of them on ebay right now for $44...
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