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Which if he wanted to do that, should of just started his own thread elsewhere in the forum to discuss that topic rather than spamming my thread with his topic. |
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#2
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Which if he wanted to do that, should of just started his own thread elsewhere in the forum to discuss that topic rather than spamming my thread with his topic. And on that note I'm going to stop while I'm still ahead. |
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#3
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#4
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Gentlemen,
My name is Scott. I grew up in the '60s and '70s, got my electronics degree and have been working on modern 3 phase UPS systems for more than 30 years. About 10 years ago I built an Internet radio and picked up a TeleTone AA5 to house it. I looked at the removed chassis and figured out what was wrong with it and that started my fascination with tube electronics. I've restored several radios and TVs since then acquiring (and restoring) vintage test equipment along the way. I am not trying to keep this going but it was never my intention to slam anyone other than the "Stupid Law" comment. I attempted to respond to the portion of vortalexfan's thread after Electronic M made the comment but I did not realize that my comment would be added to the end of the thread. That made it appear out of context which I now understand. I obvious agree that the 2007 EISA decision restricting 60 watt and lower incandescent lamp production based on efficiency is a good thing. It does not mean you can't find these lower wattage lamps. It simply means that your typical source for these bulbs will likely dry up because marketing LED replacements are becoming more popular. The reason I commented in the first place is I was following vortalexfan's troubleshooting of his Meck TV and wanted to encourage a more sophisticated approach. I have re-read the thread and I now realize that not only was he struggling on some of the most basic troubleshooting concepts but his financial situation could not support my suggestion. I apologize for misreading the thread and writing a comment that was easily misunderstood. I have benefited from being a videokarma member for more than two years and I'm hoping to regain trust from the membership. With respect, Scott |
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#5
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Speaking for myself only , because it's not my place to speak for the rest of the membership ; I don't believe you've lost any trust here , you sure haven't lost any with me ! People have small disagreements on internet chat forums all the time , it happens , and we are actually truly blessed that the disagreements here don't rise to the level I see on the model airplane forum I belong to (Pick just about any thread at the RC Universe "AMA discussions" subforum to see just how ugly internet dustups/trolling can become) . An off topic side comment was made , you posted your view about it , and that in itself is no reason for people to distrust you . Now if you had come in with figurative guns blazing tossing verbal bombs everywhere sure I could see folks taking issue with that , but I'd hope we as a group DO have the mutual respect to accept that there WILL be disagreements on various off topics and not go holding lifelong grudges over such small issues ..... |
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#6
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Thanks for the kind comments. |
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#7
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God bless Gilda Radner , it IS always something |
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#8
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I switched because a better product appeared, not because the old one got banned. I believe the same thing could have been accomplished though tariffs and subsidies instead of an outright ban, which had the side effect of making non energy intensive specialty uses of incandescent bulbs harder to accomplish due to lack of supply. That said, I suggest a variac plugged into a kill a watt instead of a dim bulb. I think dim bulb testers are more use for amateurs troubleshooting audio equipment - I have never seen a pro tech use one. |
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#9
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I didn't mean to upset you, and I'm really quite new to working on antique TV sets (although I have serviced many solid state TVs from the 1980s and 1990s and even Flat Panels without too much issue). I'm more experienced in repairing Tube Radios and Record Players (not as complicated to troubleshoot and not as much to go wrong with them as TVs). I just wanted to try my hand at an old tube powered TV because I've always wanted to have one to watch period movies and TV shows on, but even this lower end Meck TV has proven to be a nightmare to work on as you could see from my thread. Although it doesn't help matters any that my Meck TV had sat in an old abandoned farmhouse that lost its roof over 20 years ago prior to the person who I got it from finding it. I have been working on vintage electronics (tube and solid state) since I was 13 and I'm 31 now, and my very first repair was a 1985 vintage Montgomery Wards 13" B & W TV that the Vertical and Horizontal hold was screwed up on it and all I did was readjust the horizontal and vertical hold controls on the back of the set and it worked perfectly for the 5 years I had it (before I was given a 1988 Zenith 13" Color TV that had the best Picture I had ever seen on a color TV up to that point), and I had that TV clear up until just before the DTV Conversion when I then donated it to Goodwill (back when they were still taking CRT TVs, which the Goodwills near where I live all quit taking CRT TVs arount 2014). Last edited by vortalexfan; 12-31-2019 at 11:48 PM. |
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#10
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I want to logically justify my position in saying it was a stupid law before. I'm a free market favoring capitalist and a DXer, among other things, and that law hacked both of those aspects of me off quite a bit. First off as an American adult I feel deeply offended when something benign is made illegal to sell to me. Also I see global warming/climate change as nothing more than a Marxist strategy to destabilize and sieze big brother style control over our ecconomy. Marx himself proposed killing capitalism by getting the public to attack industry for pollution. Climate change has never been on solid ground scientifically, virtually all predictions especially the alarmist ones that have passed their it will happen by date have not come to pass, and there are many predictions that are in conflict with other such predictions...In short I believe it is all a bunch of hogwash made by politicians, scientists with overriding political motives, and scientists funded by politicians trying to please their source of funds... I believe that as long as I pay for the energy I use and find some personally defined benefit in the way I use it then I should not be bound by someone else's efficiency standards.....If the opposite happens and consumer energy use regulations tighten we will likely eventually be banned from using our tube electronics based on their poor efficiency (and that prospect should bother all of us). As a DXer and Licensed Ham radio opperator the proliferation of man-made radio noise in recent decades has bothered and hampered me greatly... non-incandescent lighting seems to be the most common source behind switch mode power supplies (that often are components of said lighting) which are also proliferating. I chose to use as little non-incandescent as possible to minimize the RF noise and I really wish we would all just go back to incandescent and 60Hz linear transformer supplies to reduce man made RF noise....I suppose an alternative would be for the government to completely ban the manufacture and import of noisy devices and force the alternative lighting solutions to get their noise problem under control, but the government doesn't seem to be interested... I could also argue about the difference in actual light quality and that there are plenty of fixtures out there that don't properly support modern bulbs or look silly equipped with them but those arguments are IMO obvious. The above represents my personal opinion. It is not intended to offend but rather merely to offer insight.
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Tom C. Zenith: The quality stays in EVEN after the name falls off! What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4 Last edited by Electronic M; 01-06-2020 at 11:46 AM. |
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#11
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__________________
To keep your tubes running smoothly, make sure to dust underneath the glass as well. |
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#12
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I do still fly. In fact, my BFR is scheduled for tomorrow if the weather holds. It's always tricky this time of year. I used to fly RC for years before jumping full scale. I was active in a Pontiac, MI club for about a decade. You know the drill: build in the winter and fly in the summer. I still have a giant scale and three of four park flyers but I am sure to be really rusty. It is amazing the progress in LiPo technology since I was active.
I was into building drones before the corporate world took over. It was fun being part of the hardware and software development but my two home built drones are way behind the times. I do have one of my drones registered with the FAA but I did not hear about the pilot licensing requirement. I know there is a regulation and airspace operating requirement for drone pilots operating in controlled airspace outside a AMA sanctioned field and that's something I support but it does surprise me if that extends to a local flying field. I have a good friend that makes a living as a drone photographer but I've never heard him talk about having to have a pilot's license. At least not in the traditional sense. You've peaked my interest. Now I must investigate. |
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#13
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Hi Guys,
I've been struggling on how to fix a horizontal width issue (way two wide) and I stumbled upon a solution but it worries me. I was testing C106 and forgot to re-solder it and all of a sudden, I have good width control via T4. I've not replaced C106 for leakage (I can test up to 450V) but I've substituted an equivalent arrangement of multiple capacitors and with the new arrangement, the problem returns. I've not replaced C106, R106 or C107 but I'm not sure they are the problem. With C106 left in place, the best width I can achieve is about 10-15% overshoot with the T4 slug fully retracted. With C106 out of circuit, I can adjust T4 to a midpoint and achieve a normal width picture. I've looked through Grob's, Basic Television Principles & Servicing but nothing quite matches the example designs and this RCA. Has anyone run into this issue? How about the purpose of C106? It looks like some kind of boost bypass to one side of the yoke but I'm not sure why. Second question, can you think of any long range issues keeping C106 disconnected? Thanks in advance, Scott Last edited by JSMCMS; 12-30-2019 at 11:44 AM. Reason: Add photo |
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#14
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No harm leaving it out if that gives you the width range you're looking for.
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#15
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I think that C106 may form a resonance with the flyback winding. That could make sense that it would effect the width. May effect the boost voltage and HV also. Is there a chance that the flyback was replaced? Did you confirm the original value of the cap? SAMS has been know to make mistakes.
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