Search found 1774 matches

by Externet
Mon Mar 11, 2019 4:36 pm
Forum: General Discussion
Topic: Any integrated circuit that works as the old tone decoder but for RF ?
Replies: 7
Views: 122

Re: Any integrated circuit that works as the old tone decoder but for RF ?

Thanks, haklesup. Yes, bought broadcast FM receiver kits that use a TA2003 receiver chip, modified for 118 - 138MHz Rx and are working very well, (with distorted audio from FM demodulation that I do not care). Ordered AD8307 chips to experiment if those detect 10.7MHz at the chip IF node hopefully t...
by Externet
Sun Mar 10, 2019 7:38 pm
Forum: General Discussion
Topic: Antenna Cable Routing.........
Replies: 9
Views: 234

Re: Antenna Cable Routing.........

Hi Tzap. I would test first for signal sufficiency and insert a preamplifier only if weak, at a point before signal gets distributed and passes so many connectors. That would be LNB output. Perhaps the diplexers/switch/splitter could be modified disconnecting their (choked) power path/feed ports goi...
by Externet
Sun Mar 10, 2019 12:38 pm
Forum: General Discussion
Topic: Any integrated circuit that works as the old tone decoder but for RF ?
Replies: 7
Views: 122

Any integrated circuit that works as the old tone decoder but for RF ?

Hi.
Do you know of an IC like the NE567 audio tone decoder (detector) but for RF ?
Looking to detect the presence of 11MHz or 130MHz, turning a LED on.
by Externet
Sun Mar 10, 2019 10:41 am
Forum: General Discussion
Topic: Antenna Cable Routing.........
Replies: 9
Views: 234

Re: Antenna Cable Routing.........

Hi.
Consider if your satellite receivers DC fed on coaxial to the dish LNB do not interact improperly with the path trough/into several devices.
by Externet
Sun Mar 10, 2019 10:27 am
Forum: General Discussion
Topic: Impending Forum Milestone
Replies: 3
Views: 121

Re: Impending Forum Milestone

Yes, congratulations for Dacflyer !
It has been many years; from the days of Chris and 'pulling rice'.

The earliest group that I remember originated middle nineties at a Microsoft forum, then migrated to a Popular Electronics forum, then to Electronics Now before Nuts&Volts -if I have it right-
by Externet
Sat Mar 02, 2019 4:35 pm
Forum: General Discussion
Topic: Technology Backfire?
Replies: 25
Views: 415

Re: Technology Backfire?

Very right, CeaSaR.
The product of the non-stop-growth of laziness. Easier to massage a keyboard expecting a solution than doing real diagnostics. Too much work to unscrew spark plugs!. And not returning the replaced 'bad' parts to the owner. Easier and nearer is the garbage can.
by Externet
Fri Mar 01, 2019 6:49 am
Forum: General Discussion
Topic: Technology Backfire?
Replies: 25
Views: 415

Re: Technology Backfire?

Hi Len. If Honda cannot, you can diagnose the drain yourself and sell the result to Honda plus bill for your time. :smile: Adding that battery switch will just give another weak point of failure and complexity besides the loss of memories you list for the compfusers. Probing current at each fuse hol...
by Externet
Thu Feb 28, 2019 6:25 pm
Forum: General Discussion
Topic: Technology Backfire?
Replies: 25
Views: 415

Re: Technology Backfire?

Hi Len.
If the Honda service centre cannot find the current path discharging the battery, they are incompetents. I would attempt to return/exchange the car to the dealer; then they may put some effort on the problem.
by Externet
Tue Jan 29, 2019 7:26 am
Forum: General Discussion
Topic: Sysop Note: Logon Amnesia
Replies: 21
Views: 920

Re: Sysop Note: Logon Amnesia

A new one for Sysop...
Type three "x" on a post.
Look at what shows up.
by Externet
Wed Jan 02, 2019 8:52 pm
Forum: General Discussion
Topic: Sysop Note: Logon Amnesia
Replies: 21
Views: 920

Re: Sysop Note: Logon Amnesia

Thanks for your efforts, Sean.
My report above obeys to Linux and Firefox.
by Externet
Thu Dec 27, 2018 2:45 pm
Forum: General Discussion
Topic: Sysop Note: Logon Amnesia
Replies: 21
Views: 920

Re: Sysop Note: Logon Amnesia

Seems like the time window when logging in is very short to post something elaborated. The web site wants the user logged-in with the 'Remember me' selected to override the amnesia. But even with the 'Remember me' selected, if you turn your computer off; drops the login and does not remember the use...
by Externet
Wed Dec 26, 2018 6:09 pm
Forum: General Discussion
Topic: Sorry, could not resist to post...
Replies: 27
Views: 3151

Re: Sorry, could not resist to post...

Well, fellows, resurrecting a very old post as I found the image corresponding to the link gone forever. And some who did not see it may enjoy it...

Glassless tubes3.png
by Externet
Mon Dec 24, 2018 8:07 pm
Forum: General Discussion
Topic: Resistor Color Codes
Replies: 9
Views: 383

Re: Resistor Color Codes

To make things harder, there were a few resistor manufacturers that graded the body color (light grey, beige, light blue, lightr brown...) as a temperature or something else cohefficient. Cannot remember now what it was.... :???:
by Externet
Fri Dec 14, 2018 5:57 pm
Forum: General Discussion
Topic: Water Leak
Replies: 8
Views: 366

Re: Water Leak

For copper pipe.... would have to be single wire in paper/cotton insulation ? Condensation... a good place for Murphy to lurk from...
Tackling so many appliances would be very elaborated ! A bunch of high gain funnels hosed to the aspirine...
by Externet
Fri Dec 14, 2018 1:21 pm
Forum: General Discussion
Topic: Water Leak
Replies: 8
Views: 366

Re: Water Leak

Oh, yes, the aspirin method... but that is when you already have a puddle... right at the aspirin location. I mentioned differential pressure sensing as a method to avoid. Would you be happy with a pair of parallel bare wires taped on the bottom of pipes ? Anywhere a leak develops should reach the w...