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  1. S

    Will it effect laptop's battery if I use charger connected when fully charged?

    I agree with the above inputs. Discharge the battery occasionally to extend battery life. (20%) The only reason I'm adding input here, is that I also bought a Lenovo, THEN found out the Chinese put spyware in there. Unless something has changed, you should Google information about what you...
  2. S

    QRP CW Pixie Kit

    I can't use Facebook. The videos I saw are on YouTube. Can you get YouTube on your computer, and maybe it's Facebook you couldn't get? The first video I saw there was labeled "40 meter QRP CW Pixie Kit" I got there by Googleing your kit. Good luck, NA8U
  3. S

    UT61E multimeter - milliamps function not working

    DAMN! I wish some of my repairs would go like that. Take it apart, put it back together, and it's fixed!
  4. S

    QRP CW Pixie Kit

    You just answered your own question. Us old-timers used to read directions that came with the kits (sometimes, anyway) Now-a-days, ya gotta log onto some computer and check YouTube for the directions. (I just did a quick check and it's under 40 meter QRP CW....) I never figured out if you don't...
  5. S

    Contact Cleaner?

    Learned something new today. Thanks Audoguru for the explanation. Something for me to try. (And thanks Bunky for bringing the topic up). Yeah, I use an eraser on the finger contacts on plug-in boards. I'd try contact cleaner on the switches. I spray the stuff in and exercise the switches. If...
  6. S

    reasons why frequency shows difference in three devices

    And use some shielding when you're trying to make measurements. Besides what you're picking-up from your own components, you're picking-up every outside radiated signal in the immediate area.
  7. S

    Contact Cleaner?

    I'm wondering if you're talking about cleaning the inside of chassis, along with any dirty switch contacts? I use compressed 'air', either a pressured air hose, or spray can to clean-out and dust inside the chassis. I don't recommend hosing down the entire insides with contact cleaner if that's...
  8. S

    Need Help to Identified Unknown Components-746, 748, 840

    So. Is this an observation you're sharing, or do you have a question?
  9. S

    UT61E multimeter - milliamps function not working

    The first think I'd check is the function/range switch(es). The switch contacts may be dirty.
  10. S

    carbon steel screw versus brass screws

    Interesting reading here. One thing I did think of that you might check if you re-use the old sockets: One house I was in, the sockets were so old that when you plugged a cord into the socket, the plug often just fell out of the outlet. The spring steel in the sockets had weakened, and the...
  11. S

    Trailer lights and converters

    I don't know, but is that 5th wire to run electric brakes on the trailer?
  12. S

    nubie pot question

    My 2-cents worth is to be aware, if you're not, that they make linear potentiometers and also audio taper potentiometers. You don't want the log pots for this. Like *steve* said. If you can give us a little more information about the project, we can probably give more complete advice.
  13. S

    carbon steel screw versus brass screws

    My guess is, as duke37 noted, brass screws are more desirable because they don't corrode. That's my guess as to why whomever you got the switches from are missing the brass screws. They were salvaged because whomever took them wanted them for his own use in something else. In my younger days I...
  14. S

    2N3055's and heat

    Everybody else here presented good advice with well thought-out analysis. You asked for 'any advice', so here's mine. Aluminum cased TO-3 packages don't hold-up thermally as well as steel TO-3 packages. When I build something that I want to last, I use the steel TO-3 packages in my devices. I...
  15. S

    have you seen one of these?

    Is there a manufacturer's name on it? I'm assuming you want an exact equivalent?
  16. S

    Suggestions on video camera surveillance

    There are so many surveillance systems available, there's probably one out that that will do what you want. I suggest you make a list of what you want it to be able to do, and share it here, so someone can point you to something they're familiar with to do the job. For example: Do you just want...
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    Philips 109P4 Trinitron CRT

    You need somebody old enough to have worked on CRT displays. New techs don't know anything about them. If you're going to trash it, believing it unsalvageable and not worried about damage you might cause, I'd open it up and take a look inside the housing before throwing it away. If I remember...
  18. S

    Philips 109P4 Trinitron CRT

    It doesn't sound like you've got any experience troubleshooting electronic circuits. Do you know anyone around you who does? I can't see your problem, but this is basically what would need to be done: 1) Only somebody familiar with CRT's should mess with them, because there's high voltage on...
  19. S

    Nice relaxing day.

    I don't think it's generalizing *steve*. I live near Tucson, AZ. Heavily liberal because of the college here. My view, what they call 'conservative' in this country, is what other conservatives think. We don't much care what other people think or want to do with their own lives. Live and let...
  20. S

    Nice relaxing day.

    Does Tasmania hate non-politically correct Americans too? I'm just sad there's only one acceptable way to think now. From what I've read, the Europeans who came here were trying to get away from that. I may not have liked some of the Presidents we've had, but I never wanted any of them dead. Now...
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