Electronics Repair

Substitute for 2SK1358

Superficially the Toshiba TK9J90E looks like it might make a good substitute for the possibly-out-of-production, expensi...

0 comments posted 8yrs

posted by bitrex

0 comments posted 8yrs posted by bitrex

Is this worth the price

Hello, Just wonder if this item is worth the price?? https://www.ebay.com/itm/222777410635?ssPageName=STRK:MESELX:IT&_tr...

3 comments posted 8yrs

posted by lost

3 comments posted 8yrs posted by lost

Details on the massive Meltdown & Spectre CPU flaws on almost all CPUs with "predictive" fetches since about 1995

Massive chip flaw not limited to Intel Intel is dealing with a major chip bug, but full impact unclear How to protect y...

0 comments posted 8yrs

posted by harryne_wton

0 comments posted 8yrs posted by harryne_wton

Bose laser-more info

So I took apart the case of the Bose so I could clean and lube the laser assembly. Also used some canned blow off gas t...

7 comments posted 8yrs

posted by etpm

7 comments posted 8yrs posted by etpm

HP 4800A vector impedance meter experience?

Anyone have any experience with work on a 1960's HP 4800A Vector Impedance Meter? Thanks Murray

0 comments posted 8yrs

posted by murrayatuptowngallery

0 comments posted 8yrs posted by murrayatuptowngallery

HP 54111D dim display

Anyone know if there is a solution to low display brightness on a HP 54111D oscilloscope, like maybe power supply capac...

31 comments posted 8yrs

posted by murrayatuptowngallery

31 comments posted 8yrs posted by murrayatuptowngallery

It's 2018 on Planet Mars

It's official. They are in a different time zone.... Happy New Year martians !!!

13 comments posted 8yrs

posted by oldschool

13 comments posted 8yrs posted by oldschool

SRS SR560 preamp repair / upgrade

I have a number of the Stanford Research Systems SR560 voltage pre-amplifiers in my labs. I also see them in use in my...

1 comments posted 8yrs

posted by rana.adhikari

1 comments posted 8yrs posted by rana.adhikari

FreedomPop Franklin 850 Hotspot Woes

Motorola Moto G5 Android 7 single-SIM phone with a cheap prepaid T-Mobile SIM. When I added the $20 500-MB/month-free-d...

3 comments posted 8yrs

posted by bashley101

3 comments posted 8yrs posted by bashley101

Any thoughts on a heavy storm in the English Channel , morning of 01 Jan 2018?

GFS and WRF both have the heavy winds passing between Brest and Nantes, then continuing over northern France. But WRF h...

3 comments posted 8yrs

posted by diverse

3 comments posted 8yrs posted by diverse

USB Hub not working

I have one of these USB hubs with several USB connectors, which plugs into a single USB port on a computer. It dont wor...

6 comments posted 8yrs

posted by oldschool

6 comments posted 8yrs posted by oldschool

sound from one laptop speaker only, can't solve this

I've often run a stereo miniplug out to two RCA plugs into a stereo amp for an iPod, boombox, laptop, without problems....

12 comments posted 8yrs

posted by timothy42b

12 comments posted 8yrs posted by timothy42b

What free cross-platform benchmark tools do you use to benchmark phones?

What free cross-platform benchmark tools do you use to benchmark phones? I bought a handful of Costco $130 Android LG S...

2 comments posted 8yrs

posted by harry

2 comments posted 8yrs posted by harry

Apple throttled your iPhone by cutting its speed almost in HALF!

Talk about drastic! Apple throttled your iPhone by cutting its speed almost in HALF! "After replacing the battery, Geekb...

257 comments posted 8yrs

posted by harry

257 comments posted 8yrs posted by harry

LM7815A and LM7915A metal tab or no metal tab?

I'm servicing a Behringer EUROPOWER PMH2000. The + and - 15 volt regulators need replacing because the leads have faile...

12 comments posted 8yrs

posted by farberbear.unspam

12 comments posted 8yrs posted by farberbear.unspam