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  1. S

    Happy new year

    Best wishes to everyone for the new year. ... First day back at work for me after the holiday break. I'm pretty sure I'm not alone. Hoping the best for all of us.
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    Replacing Christmas light bulbs.

    Any stores near you that might carry the replacement bulb you need? I think most places are going to LED's now, but a small package of replacement bulbs for the old strings used to be pretty cheap.
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    MCS 3847 Integrated Amp Noisy Left Channel

    I'd be looking at the small (non-electrolytic) caps on the left channel output. That'd be where I start. You may indeed have a problem elsewhere, but your symptom would have started me out with the capacitors first, like you did. I've just sometimes found cracked or blown small capacitors in...
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    Looking for a component

    I just know from experience that running two boilers intermittently might seem like 'equal utilization', but what actually happens is that they both become restricted (less efficient) as time passes. When one requires service, you're left with a less than efficient boiler that you hope will do...
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    Looking for a component

    I'm going to render an opinion. Hopefully others will supply the information you want if you don't like mine. I've worked in a lot of plants that operate boilers, and it's no small task servicing them. If you alternate boilers, you're going to shorten their service life, because downtime will...
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    Ultrasonic Water Level Sensor

    I agree with hevans1944. I've installed many ultrasonic level meters for hazardous/toxic mixes. There's nothing cheap or easy about them. I don't know your application, but if this is just water level, there are plenty of cheap and easy ways to do it, and hevans1944 gave you several good...
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    Server Move

    Go ahead and admit it Ian. Computers slow you down.
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    Server Move

    Thanks for posting the msg that you were working on the server transfer WHILE it was taking place. I don't know how you did that magic, but it was pretty amazing.
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    CO2 cannister valve

    I'd start by checking into the values used for CO2 pellet guns and paintball guns. Those are manually activated (as far as I know), but if you identify the different valves used, you may be able to find ones that may already exist, or can be modified for electronic activation.
  10. S

    System

    I'd ask my professor for more specific directions. Maybe an example of exactly what he meant.
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    1970 Delco Radio Repair - audio distorted

    Are the speakers as old as the radio? If you haven't already, I'd be checking the speakers themselves before I went troubleshooting the radio. Are the speakers the ohm-rating of the radio output? I admit seeing distortion (I assume you have the test equipment used for that purpose) at higher...
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    Success at last

    Impatience with those amperage readings will blow the multimeter internal fuse. If you think you get frustrated now, it'll be worse after blowing your meter fuses a few times. Try to remember to stop and think before making those current measurements and you'll stay happy.
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    2006 Sony mini boombox no power

    Congratulations. I'm sure the owner will be pleased that you could help them with this. Something to bear in mind when you offer to help somebody out with repairs; they often won't admit when they made some mistake. (Not saying this was the case here). I just wanted you aware of the fact that...
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    Coffee machine power issue

    The 'intermittent' part of your description is what catches my attention. 73's de Edd is always thorough in his troubleshooting acumen. I'd 2nd his advice. My thought is to check the actual connector pin contacts themselves. Sometimes I've found underrated pins in connector plugs can burn-up...
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    2006 Sony mini boombox no power

    It sounds like you probably already have, but with the unit disassembled, I'd just carefully visually inspect the electronics to try to determine any components or circuit trace that may have burned open-circuit. Frankly, the 'voltage checks' you asked about seem pretty obvious to me. Start at...
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    Panasonic AG-1980 Ejecting Tapes

    Do you have any hands-on troubleshooting experience? I'd open the cover and try to determine if the tape body is contacting the internal switch that tells the recorder that the tape has been detected as inserted.
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    Denon DRA-335R receiver - Left speaker channel not working on speakers A/B.

    I'll just start out of the gate with what I usually find wrong when this happens: The speaker selection switch needs to be cleaned or replaced. That may not be your problem and you may have to troubleshoot to find the electronics failure, .... but I'd check my suggestion first. (And don't forget...
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    Why the crazy price for a decade resistor/resistance box?

    ... they're expensive because you want one. I have the same problem. I see lots of stuff cheap that I don't want, but when I look for what I do want it costs an arm and a leg. In your situation, though it can take a while, I start looking at places that have what I want, and watch for surplus...
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    Getting kids into electronics

    Yep, also. My adult kids are now wizards at button-pushing, ...they think I'm an uninformed dinosaur, .... Until their magic box stops working. All of the sudden it's 'Dad, can you take a look at this?'
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    Twilight zone predictions

    I like the fact that teenagers and adults self-locate themselves for the gov't by paying for the right to carry cell-phones around all day. Since small children don't typically have cell phones, parents should install microchips in them, you know, to 'save the children' from predators. That...
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