Electronics Repair

Engine run time to keep battery charged

If you turn over an engine periodically to keep it charged, how long do you run it to make up for the charge lost in st...

50 comments posted 7yrs

posted by fizzbintuesday

50 comments posted 7yrs posted by fizzbintuesday

Which glue, available at any hardware store, for the screen of a mobile phone?

The glass-plastic-sandwich screen cracked on one mobile phone so I removed my screen and put it on the other mobile pho...

30 comments posted 7yrs

posted by arlen

30 comments posted 7yrs posted by arlen

What about the Contact Cleaner sold at Walmart?

I noticed that Walmart sells a aerosol can of what is called "Contact Cleaner". (For electrical switches and stuff like...

5 comments posted 7yrs

posted by tubeguy

5 comments posted 7yrs posted by tubeguy

Gig-Ohm resistor

I have never heard the term Gigaohms used with resistors. Is this a valid term? With computer hard drives, if a drive i...

5 comments posted 7yrs

posted by tubeguy

5 comments posted 7yrs posted by tubeguy

I performed actual IC surgery

I PERFORMED IC SURGERY on an analog amplifier, custom dip-16. Removed the gold cover. Pretty huge 1980s stuff, gold-on-...

2 comments posted 7yrs

posted by billb

2 comments posted 7yrs posted by billb

Probe stuff

Well, I thought I would have all the 'scope probes tested a couple days ago but I have been too sick to deal with anyth...

1 comments posted 7yrs

posted by etpm

1 comments posted 7yrs posted by etpm

TIP: Making connection to 0.5mm spaced lands/conductors.

Wanted to extend a small LCD display out of its little commercial box, by about 1m. Ribbon and ZIFs between the lcd pcb...

1 comments posted 7yrs

posted by diverse

1 comments posted 7yrs posted by diverse

How to Remove Concrete Grouting

I bought a house with a nice outdoor, flat stone tiled walk way. Unfortunately the tiler/installer was "quite sloppy" i...

18 comments posted 7yrs

posted by Rob_Lowe

18 comments posted 7yrs posted by Rob_Lowe

Software to calculate Ohms Law and other electronics math

Is there any Software to calculate Ohms Law and other electronics math? I have never been good at Mathematics, once you...

32 comments posted 7yrs

posted by tubeguy

32 comments posted 7yrs posted by tubeguy

Do you have experience with "infrared camera detection" on mobile devices?

Do you have experience with "infrared camera detection" on mobile devices? If so, how do you assess the difference betw...

11 comments posted 7yrs

posted by arlen

11 comments posted 7yrs posted by arlen

I cant find this state on the map.

I cant find this state on the map. I'm referring to the State called SOLID, or SOLID STATE! (And by the way, who is thei...

10 comments posted 7yrs

posted by tubeguy

10 comments posted 7yrs posted by tubeguy

Bad probe-what's wrong?

I got my new to me BK precision 4001A function generator and I thought I would see what it does. Tried looking at squar...

13 comments posted 7yrs

posted by etpm

13 comments posted 7yrs posted by etpm

Squirrel -cage motor noisy.

4-pole 3Ph squirrel -cage motor noisy. A loud buzzing noise has developed over the past 12 months. The motor is not over...

10 comments posted 7yrs

posted by pj

10 comments posted 7yrs posted by pj

This has me puzzled (resistor change)

There is a video on youtube, where a guy re-caps and repairs and tests out a late 1940's Precision Apparatus E-200 sign...

23 comments posted 7yrs

posted by tubeguy

23 comments posted 7yrs posted by tubeguy

Dyson cyclone puzzle

Dyson DC50, a lightweight ok but nothing spectacular machine except the air passages are too narrow. Suction of dirt fr...

19 comments posted 7yrs

posted by tabbypurr

19 comments posted 7yrs posted by tabbypurr