Search found 1832 matches

by Externet
Thu Oct 14, 2021 8:37 am
Forum: General Discussion
Topic: How to adjust the backlight of LCD?
Replies: 1
Views: 111

Re: How to adjust the backlight of LCD?

If you alter the control, is there any change in brightness ? Is the control enabled ?
normal-brightness-and-contrast-settings-for-monitor-3.jpg
by Externet
Thu Aug 26, 2021 9:16 am
Forum: General Discussion
Topic: Where is all my talks with Alan about the BME280?
Replies: 3
Views: 550

Re: Where is all my talks with Alan about the BME280?

Better go to the same forum you were working with Alan.
by Externet
Tue Aug 10, 2021 4:08 pm
Forum: General Discussion
Topic: Parts exchange between forum members ?
Replies: 1
Views: 3307

Parts exchange between forum members ?

Greetings.
It may work for the benefit of the few of us left...

Am looking for ICs
- 2 pcs 4077 CMOS gates trough hole,
- 2 pcs 4070 CMOS gates trough hole.

What do you need ?
by Externet
Thu Jul 08, 2021 7:46 am
Forum: General Discussion
Topic: off grid solar project
Replies: 10
Views: 4855

Re: off grid solar project

Hi John, thanks. In Bourbonland the KWh is 10 cents and the electric utility is forced to pay (credit) my generated energy on net metering at same 10 cent /KWh for the next 25 years by decree no matter if rates increase or decrease ---> yes, sure, decrease... One extra reason that made me jump onto ...
by Externet
Tue Jul 06, 2021 4:44 pm
Forum: General Discussion
Topic: off grid solar project
Replies: 10
Views: 4855

Re: off grid solar project

Hi. Am happy to report two weeks ago finished my solar implementation; next energy invoices will be credits piling up monthly until winter heating comes. Not off grid, am on grid. That is my storage 'battery' Six 2 metres x 1 metre each 390W 40VDC 10A DC series string panels, twice on the roof make ...
by Externet
Tue Jun 22, 2021 5:25 pm
Forum: General Discussion
Topic: Help to find Battery
Replies: 12
Views: 7202

Re: Help to find Battery

Can you measure the cell in millimetres, to check if matches something in the market with the dimensional nomenclature ?
(18650 are 18mm diametre, 65.0mm length, red one) Greens are 'AA' and double lenght 'AA'
Cells.jpg
by Externet
Tue May 25, 2021 12:57 pm
Forum: General Discussion
Topic: Streaming question
Replies: 7
Views: 3423

Re: Streaming question

About 20 years ago, at my workplace, streaming hardware was made. Since then, 'streaming' to me is transmitting audio on the net. Now; the wording has been twisted as 'receiving' Well; back to the subject, this is the old original product from my workplace then; new versions have been developed : Fr...
by Externet
Fri May 21, 2021 1:14 pm
Forum: General Discussion
Topic: DIY pancake slip ring
Replies: 16
Views: 6688

Re: DIY pancake slip ring

Welcome. Get scissors ready and dig in here for the convincing ones ----> https://duckduckgo.com/?t=ffsb&q=rf+seal+berilium+copper+strips&iax=images&ia=images Or not DIY ----> https://www.ebay.com/itm/323973127204?_trkparms=ispr%3D1&amdata=enc%3AAQAFAAAAkNL6QxsVdDQrMgPE%2FCMnE9pKJJXWRH1W0aw9b6zF3E9M...
by Externet
Tue Feb 02, 2021 3:16 pm
Forum: General Discussion
Topic: Looking for power injector for amplified antenna...
Replies: 6
Views: 3390

Re: Looking for power injector for amplified antenna...

Well, whatever used to be a standard, now his booster uses 6VDC. Ask the chinese, I did not do it... :???: Seems the USB jack current is capable to please the antenna booster. I will not complain. Specs here show 6V/100mA ----> https://www.ebay.com/itm/192285092531?chn=ps&norover=1&mkevt=1&mkrid=711...
by Externet
Tue Feb 02, 2021 7:31 am
Forum: General Discussion
Topic: Looking for power injector for amplified antenna...
Replies: 6
Views: 3390

Re: Looking for power injector for amplified antenna...

Hi Tzap. Thank you. :sad: The booster takes 6VDC. I have its correct adapter :sad: Decided to make my own; and added a USB male power cable to power it with the USB jack in the TV. Worked too on 5V. :eek: If can work better, I do not know, but will live with it. The second schematic here ----> https...
by Externet
Sun Jan 31, 2021 7:34 pm
Forum: General Discussion
Topic: Looking for power injector for amplified antenna...
Replies: 6
Views: 3390

Re: Looking for power injector for amplified antenna...

Thanks, Tzap.
That is the power supply + injector.

The injector only is like
injector.jpeg
by Externet
Sat Jan 30, 2021 7:36 am
Forum: General Discussion
Topic: Open door to robots count ?
Replies: 1
Views: 2496

Open door to robots count ?

Hi.
Just noticed what was not there yesterday. Huge numbers for 'views' of a post/thread.

What changed ?
by Externet
Fri Jan 29, 2021 9:12 pm
Forum: General Discussion
Topic: Looking for power injector for amplified antenna...
Replies: 6
Views: 3390

Looking for power injector for amplified antenna...

Hi all. A TV antenna on the roof has a built-in preamplifier. Am looking for a power injector that will send 12V to the antenna and will separate the RF signal to feed the TV RF input. Do you have one behind the spider webs for sale ? Should have three ports; - Power in - connects to 12V supply - Po...
by Externet
Thu Dec 17, 2020 11:15 am
Forum: General Discussion
Topic: Is Nuts and Volts dead ?
Replies: 82
Views: 42919

Re: Is Nuts and Volts dead ?

There is Nuts&Volts magazine; and Nuts&Volts forum. Death evaluation should be dealt by separate coroners.* In mid nineties, the trendy forums on the web were 'Popular Electronics' and something with Microsoft forums? and something else as ' Electronics Now' ? Those places harbored some (or now very...
by Externet
Wed Dec 02, 2020 9:04 am
Forum: General Discussion
Topic: To read revolutions per second on multimeter ?
Replies: 2
Views: 1940

To read revolutions per second on multimeter ?

Hi. Cheap and not multimeters have the Hertz reading setting. Would like to implement a simple optical reader aiming a turning shaft with a black/white marking. Perhaps severing the optosensor half of an optocoupler, or a phototransistor, or even a tiny magnet glued to shaft, and a coil to the meter...