T&L Publications

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 ...

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'

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...

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%2FCMnE9pKJJXW...

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&a...

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...

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

The injector only is like

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

What changed ?

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...

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 ...

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...

----> https://www.wish.com/product/5ef9aaca241cc817e5e131ee?hide_login_modal=true&from_ad=goog_shopping&_display_country_code=US&_force_currency_code=USD&pid=googleadwords_int&c=%7BcampaignId%7D&ad_cid=5ef9aaca241cc817e5e131ee&ad_cc=US&ad_lang=EN&ad_curr=USD&a...

And you want that for alternating and direct current ?

¿? Do you want to originate calls on your wireless cell service provider by using the landline hardware ? , or answering calls to your cell phone by lifting the landline handset ? Or reversed, use the landline to place and answer calls manipulating your ´smart' phone ? Landlines telephones use audio...

jwax wrote: ↑Thu Nov 05, 2020 5:40 pm I don't believe in ghosts anymore!
Black tape over the IR detector has stopped the random turn-on problem!

Noooooo! I was hoping being a true ghost and restarting a 'Rice pulling'-like subject