Search found 1590 matches

by dyarker
Sun Dec 15, 2019 6:49 pm
Forum: General Discussion
Topic: Question about Fast adaptive charging
Replies: 22
Views: 8158

Re: Question about Fast adaptive charging

Maybe the "original" was a bad Chinese knock-off! Else why is everybody buying replacements? :???:
by dyarker
Fri Dec 13, 2019 5:04 pm
Forum: General Discussion
Topic: Is Nuts and Volts dead ?
Replies: 80
Views: 25418

Re: Is Nuts and Volts dead ?

Have you seen Sean's post on 10 Dec 2019?
by dyarker
Thu Nov 28, 2019 1:58 pm
Forum: General Discussion
Topic: Happy Thanksgiving
Replies: 16
Views: 7507

Re: Happy Thanksgiving

Can't improve on that … Happy Thanksgiving!!!
by dyarker
Sat Nov 09, 2019 5:42 pm
Forum: Computer Programming
Topic: TLS Handshake issues
Replies: 9
Views: 3121

Re: TLS Handshake issues

I do not believe more time will help. (find page named "Transport Layer Security" at Wikipedia for background info. (I can not get regular Wikipedia from here to copy/paste a link for you.)) It is something else. Is it always the same page (or pages)? Something is corrupting the certificate exchange...
by dyarker
Wed Oct 09, 2019 6:47 am
Forum: General Discussion
Topic: Anyone here ever mess with UPS's ( back up power supplies )
Replies: 9
Views: 3747

Re: Anyone here ever mess with UPS's ( back up power supplies )

Dac, was it a True RMS meter? Most meters report RMS voltage (when fed a sign wave) but are peak responding. ((they measure peak voltage, multiply by 0.707, display the result. 0.707 is the ratio of peak to RMS for a sine wave. Other wave forms have different ratios.)) The 120Hz probably means the s...
by dyarker
Tue Sep 03, 2019 7:15 am
Forum: Computer Programming
Topic: some problem during I use this chip in my design
Replies: 1
Views: 1448

Re: some problem during I use this chip in my design

I believe you electrically program it once, then only read it. OTP/EPROM as opposed to manufactured with the program in it. It could be fuseable links or what you usually consider an EPROM without the quartz window for UV erasing.
by dyarker
Mon Aug 12, 2019 10:29 am
Forum: Computer Programming
Topic: server fan diagram
Replies: 5
Views: 2945

Re: server fan diagram

Is "several" 8 wires to a 5 pin connector?

https://turkish.alibaba.com/product-det ... 94239.html
by dyarker
Mon Aug 12, 2019 4:01 am
Forum: Computer Programming
Topic: server fan diagram
Replies: 5
Views: 2945

Re: server fan diagram

The labels on the fans say what is needed. 12V DC for both, 1A or 1.23A max draw. For slower speed use a lower voltage, or a series resistor, or (for better efficiency) 12V PWM. For reversible variable speed, apply PWM through an "H" bridge.

Cheers,
by dyarker
Sat Jul 13, 2019 8:36 am
Forum: General Discussion
Topic: What do you call this?
Replies: 12
Views: 4440

Re: What do you call this?

Is other end a yellow RCA connector like the one shown by Janitor TZap?

If yes, then my guess is HDMI video only, not charger.

Cheers,
by dyarker
Mon Jul 08, 2019 9:25 am
Forum: Computer Programming
Topic: Help with Microsoft word 2000
Replies: 10
Views: 3327

Re: Help with Microsoft word 2000

First 3 dots stand for "Do you want to". The second 3 dots for "the existing file?" Rather than retyping the entire sentence from the message box you posted image of. In File Explorer (or Windows Explorer in older Windows), right click on file name or folder name, click Properties, Read only is a ch...
by dyarker
Mon Jul 08, 2019 4:11 am
Forum: Computer Programming
Topic: Help with Microsoft word 2000
Replies: 10
Views: 3327

Re: Help with Microsoft word 2000

I suggest that "this is a test" already exists IN THAT FOLDER. Try another folder. Also, that the file is read-only; so "... replace …" and "Yes" can't work. Try another name. Also a possibility the folder is read-only, or you're trying save in Word's program folder. Cheers, added - the file is open...
by dyarker
Wed Jun 19, 2019 1:25 pm
Forum: General Discussion
Topic: Crazy Phone issues here..
Replies: 18
Views: 9042

Re: Crazy Phone issues here..

Maybe 19AWG?
by dyarker
Fri Jun 14, 2019 1:59 pm
Forum: General Discussion
Topic: Mini amp circuit
Replies: 147
Views: 330638

Re: Mini amp circuit

?? AB?? Both Q5 and Q6 are NPN.

Only Q4 is PNP. It does not need a negative supply. It's collector is toward the most negative which in this case circuit common. And the base can go negative RELATIVE to the emitter.

Cheers,