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Who OEMs Dell laser printers?

Past and present OEMs? Trying to see what brand toner they use... Thanks!
1 comments posted 12yrs
posted by invalid
1 comments posted 12yrs posted by invalid

car cig lighter to USB adaptor

In my car, in the cig lighter port, I have a cheap USB adapter to power my Phone and GPS. But it doesn't put out enough...
3 comments posted 12yrs
posted by munge
3 comments posted 12yrs posted by munge

Now reverse transformation is ready.

So previously calculated impedances now can be reversely checked: http://www.cirvirlab.com/index.php/electric/125-star-...
1 comments posted 12yrs
posted by pchung705
1 comments posted 12yrs posted by pchung705

Serch engine for power components

Try out this custom search engine optimized for power electronic components, that categorizes it's results for datashee...
0 comments posted 13yrs
posted by andreakrmac
0 comments posted 13yrs posted by andreakrmac

Zener Diode Dilemma

Zener Diode Dilemma I purchased 50 1N4728 3.3v Fairchild zener diodes and trying to test them b efore installing in a c...
22 comments posted 13yrs
posted by jjk439
22 comments posted 13yrs posted by jjk439

The first transistor radio

"It was on [Oct. 18] in 1954 that the first transistor radio appeared on the market. Transistors were a big breakthroug...
7 comments posted 13yrs
posted by VictoriaB
7 comments posted 13yrs posted by VictoriaB

question

why no messages after 15 Oct, 2013
5 comments posted 13yrs
posted by dhky
5 comments posted 13yrs posted by dhky

B-FTP vs B-FHTP Electrical Motor

I am trying to replace a 120v C-Frame Shaded Pole motor in a kickspace heater. It was installed in 1978. I can't find t...
13 comments posted 13yrs
posted by phoney
13 comments posted 13yrs posted by phoney

60Hz to 50Hz Appliance

Hello, I was wondering if an American Made Referigrator rated 120V 60Hz could work efficiently with the use of a step do...
15 comments posted 13yrs
posted by kissi5559
15 comments posted 13yrs posted by kissi5559

Darlington pair is two stage current amplifier

Darlington pair is actually two stage current amplifier. Now, there is new tutorial: http://www.cirvirlab.com/index.php...
1 comments posted 13yrs
posted by pchung705
1 comments posted 13yrs posted by pchung705

Bad disk capacitor?

I have been working on stuff for almost 50 years and I just had my first shorted disk capacitor. (those flat brown cera...
5 comments posted 13yrs
posted by gfretwell
5 comments posted 13yrs posted by gfretwell

push-pull output simulation is ready

Push-pull output is most popular output stage for op-amps and audio power amplifiers. New tutorial: http://www.cirvirla...
0 comments posted 13yrs
posted by pchung705
0 comments posted 13yrs posted by pchung705