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Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809 -
Re: Hand crafted Triode tube
Older timer that been through it all. Electro-Mechanics love it. -
Re: Hand crafted Triode tube
Pretty neat.Comment
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Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Hand crafted Triode tube
Interesting to watch . Years ago I used a few vacuum tubes , never thought too much on how they were made . I do remember all factory tubes had what was known as a getter ring , after pulling a vacuum they would fry what was left with high voltage .Comment
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Re: Hand crafted Triode tube
Glass, steel, fire - that is true art. I marvel at the man's patience and how he doesn't fret if things aren't perfect.Comment
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Re: Hand crafted Triode tube
Indeed really cool stuff. I can see myself doing projects like this when I get older. lolMuh-soggy-kneeComment
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Re: Hand crafted Triode tube
I sure like to have one of that spot welding machine.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Hand crafted Triode tube
I've seen a couple of online instructions on how to make a light duty spot welder from a microwave oven transformer.Comment
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Re: Hand crafted Triode tube
The temperature control has to be well calibrated especially for aluminum. You might also try some government auctions. That is how the owner of my Dad's company use to pick up all his equipment.Comment
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Re: Hand crafted Triode tube
It's nice being able to make your own amplifying devices. Now the curious question: has anyone been able to make homemade transistors? Now that is a feat I haven't seen yet...Comment
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Re: Hand crafted Triode tube
There are some links in a google search for home made transistor. Here's an interesting pic.Attached FilesComment
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Re: Hand crafted Triode tube
That looks like a galena crystal transistor. I'd heard the transistor was discovered by people running crystal radios (galena) and noticing that adding a second-contact point could produce gain.Comment
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Re: Hand crafted Triode tube
I've seen lots of galena crystal diodes and it looks like someone got a transistor working. But gosh I'd much rather use a homemade vacuum tube than those homemade transistors because they're much more reliable... merely shaking those point contact diodes and transistors and they'll fail. The homemade vacuum tube will survive.
Now compare a commercial vacuum tube and a commercial transistor... now which would you expect to survive after a small drop...Comment
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Hi everyone!
I managed to get my hands on a rough condition B&K 707 for "the best price" because it was not working. It's my first tube tester and I'm really wanting to get it up and running. I downloaded that manual that has the schematics and tested every resistor and capacitor and replaced the ones that failed. I replaced the missing 83 rectifier tube with a used but tested-good one. I also have a number 80 rectifier tube that I have used in tests before I found the 83 tube.
Initially I noticed that I was not getting the red on-light to turn on, but it... -
Recently I acquired an Eico HFT 92 AM/FM radio made back in 1958. The unit has had some decent modifications done such as replacing the rectifier tube with silicon diodes and replacing the main filter capacitor with electrolytic capacitors. When I powered it up FM wouldn't tune past 105Mhz. I checked the FM tuner front end assembly and found a capacitor not soldered to the coil from the Plate B+ to and ground on the other side of the coil. Some calibration was needed on the trimmer capacitor on the tuner. My question is AM is extremely weak. When I tap on the tube I get all kinds of snapping and... -
The Fatman iTube (OEM Dared, which also sold its own-branded version, the Dared MP-5) is a tube-buffered gainclone first introduced c.2005, to target the iPod market with a bookshelf tube setup. It became a huge success over the next ~15 years, selling over ~100k units worldwide to a market where it was often their first introduction to vacuum-tube audio on a budget.
http://www.enjoythemusic.com/magazin.../dared_mp5.htm
One of the Fatman versions landed up for auditioning a few days ago, and I must say that I was impressed with its form-factor, pricing,...03-13-2021, 08:45 PM -
Hi all,
I have a SMEG cooktop with a EGO 72.08041.002 power board. The two left hand side cooktops started to slowly fail, sometimes stopping with an EA error (Power board failure according to the manual) after a couple minutes boiling some water and eventually they completely failed and now get an EA error on both of them at all times. Visual inspection of the board went over ok, I checked the IGBT's and rectifiers and they seem fine, what should I look at next as this is the first time I'm fixing an induction cooker, I'm suspecting capacitors in this case, Which ones should I look... -
Hi everyone needs your help with this Neon Tube power supply
Here are some pictures
Large capacitor has 320V but then nothing.has removed some parts but is not sure that they are bad except that they sounded bad on the circuit...
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