It is currently Sun Oct 22, 2017 7:44 am

All times are UTC - 8 hours


Search found 2049 matches
Search these results:

Author Message

 Forum: General Discussion   Topic: Ink Drowned my AIO Printer

Posted: Mon Oct 16, 2017 10:45 am 

Replies: 14
Views: 155


Thanks, but still cannot find in the manual any hints at "Cleaning the cartridge nozzles". :(
Have used hot water after removing the cartridge from the machine, or even isopropyl alcohol. But, the old cartridges are stubbornly clogged.

 Forum: General Discussion   Topic: Ink Drowned my AIO Printer

Posted: Tue Oct 10, 2017 6:28 am 

Replies: 14
Views: 155


Sorry to hear of the inkjet troubles! My ancient HP650C Plotter is still chugging along, as I do quite a bit of roll printing. Cartridges for this 1990-era machine are the problem. Many, many suppliers sell old reman cartridges, or out of date originals, so finding ones that work is a constant searc...

 Forum: General Discussion   Topic: USB Power

 Post subject: Re: USB Power
Posted: Tue Oct 10, 2017 6:06 am 

Replies: 7
Views: 66


From the wiki page that Janitor Tzap referenced:

Electrical
Signal 5 V DC
Max. voltage
5.00+0.25
−0.60 V[a]
5.00+0.25
−0.55 V (USB 3.0)
20.00 V (PD)
Max. current
0.5 A (USB 2.0)
0.9 A (USB 3.0)
5 A (BC 1.2)
3 A (type-C)
Up to 5 A (PD)

 Forum: General Discussion   Topic: Dead Dell Laptop

 Post subject: Re: Dead Dell Laptop
Posted: Fri Aug 18, 2017 4:33 pm 

Replies: 4
Views: 218


Good info! Thanks! Next comes connector replacement!

 Forum: General Discussion   Topic: Dead Dell Laptop

 Post subject: Dead Dell Laptop
Posted: Fri Aug 18, 2017 10:01 am 

Replies: 4
Views: 218


Well, not entirely dead, but battery will not charge. Dell Inspiron 8500 laptop, many years old, but reliable until now. Works on AC, but battery does not charge, all of a sudden. Tried an old, but still OK battery and same result- doesn't charge. Also, on power up, get the message, "AC Power A...

 Forum: General Discussion   Topic: Direct backlight LED strips in 48" Samsung TV...

Posted: Thu Aug 17, 2017 7:07 am 

Replies: 7
Views: 291


Maybe the ebay seller could answer that. 2-3 volts each is typical of LEDs, but series/parallel wiring will dictate what power source is needed. Could always power it up starting low, slowly increase voltage until they get a little too warm? Flat panel ceiling lamp, eh? Nice project! I'd like one of...

 Forum: General Discussion   Topic: Master Magnet

 Post subject: Re: Master Magnet
Posted: Sun Aug 13, 2017 7:29 pm 

Replies: 2
Views: 164


Nope- not in N & V that I've seen. What I haven't seen demonstrated is one more polarity reversal beyond levitation- and that causes the attraction. It's clever looking as to how Leonerd arranged that in his Master Magnet, just would like to see it work before building it. Anyone want to explain...

 Forum: General Discussion   Topic: Master Magnet

 Post subject: Master Magnet
Posted: Sun Aug 13, 2017 3:27 pm 

Replies: 2
Views: 164


Some years ago, there was an article called, "Master Magnet", by Leonard Crow. It was instructions on how to build a magnet, powered by 120 VAC, that could pick up Non-Ferrous metals like copper and aluminum. http://www.rexresearch.com/mrmagnet/mrmagnet.htm Has anybody tried building such ...

 Forum: Up For Grabs   Topic: Solar Tabbing Ribbon

 Post subject: Solar Tabbing Ribbon
Posted: Sun Aug 13, 2017 8:43 am 

Replies: 0
Views: 136


Have a large quantity of the tabbing ribbon used to build your own photovoltaic modules. Several different sizes of solder tinned copper ribbon- rolls are many, many meters in length! Let me know if interested, and I'll provide sizes and Ulbrich's part numbers. All still factory packaged. Willing to...

 Forum: Up For Grabs   Topic: XBee Development kit....Still on the shelf!

Posted: Fri Aug 11, 2017 3:06 pm 

Replies: 3
Views: 1763


Hi Len,
What kind of range is reasonable for these transceivers, using simple dipole antennas? What frequency are they on?
Thanks!
John

 Forum: General Discussion   Topic: Lightning rods...

 Post subject: Re: Lightning rods...
Posted: Fri Aug 11, 2017 7:24 am 

Replies: 24
Views: 901


Backup created, but she still lives.
Magic occurs!

 Forum: General Discussion   Topic: i need some help with a 741 op amp.

Posted: Sat Aug 05, 2017 5:25 am 

Replies: 4
Views: 243


Seems like ideal application for a 555 timer. The sensor, instead of triggering the relay, would start the timer, and any new burst of light would keep resetting the timer. Then, if enough time passes without light, the timer would trigger the relay.

 Forum: General Discussion   Topic: Internet television...

 Post subject: Re: Internet television...
Posted: Tue Aug 01, 2017 11:02 am 

Replies: 6
Views: 291


They make a nice drying rack for t-shirts.

 Forum: General Discussion   Topic: Lightning rods...

 Post subject: Re: Lightning rods...
Posted: Tue Aug 01, 2017 10:55 am 

Replies: 24
Views: 901


And I thought I saw some weird things in 60+ years in electronics! The pc was still dead after doing the Janitor Tzap procedure. Later in the day, still dead. Twice tried. Dead. At this point, since it's dead, no point trying to fire it up again, right? It is dead! This morning, I went to pull out t...

 Forum: General Discussion   Topic: Lightning rods...

 Post subject: Re: Lightning rods...
Posted: Sun Jul 30, 2017 5:24 pm 

Replies: 24
Views: 901


Commendable attempt, but still no joy.
Sort by:  
Page 1 of 137 [ Search found 2049 matches ]


All times are UTC - 8 hours


Jump to: