Search found 1746 matches

by dyarker
Wed Jul 19, 2023 11:55 am
Forum: Nuts & Volts Magazine Discussions
Topic: Western Electric Vacuum Tubes
Replies: 32
Views: 338005

Re: Western Electric Vacuum Tubes

I never heard the term "punch" used for tubes before either. If it refers to the control grid, two things pop to mind. Frequency response (less likely), and gain. Small punch would block a greater percent of area between cathode and plate, electrons go through the open space (less current)...
by dyarker
Fri Jul 07, 2023 9:02 pm
Forum: General Discussion
Topic: Need help searching for magnets..
Replies: 17
Views: 35852

Re: Need help searching for magnets..

Seen post 4??
by dyarker
Fri Jun 30, 2023 4:33 am
Forum: Computer Programming
Topic: Web Development in 2023
Replies: 7
Views: 20752

Re: Web Development in 2023

Okay, except:
Security: Implement HTTPS, secure user data storage, and keep up with security patches as they emerge.
That is up to web host (aka ISP or web server owner). Select a host that provides HTTPS. The HTML, CSS and script you create for site content is the same for HTTP or HTTPS.

Cheers,
by dyarker
Mon Jun 19, 2023 11:55 pm
Forum: General Discussion
Topic: Antenna for Cell Phone!
Replies: 14
Views: 85532

Re: Antenna for Cell Phone!

Do you mean the $20 junk referred to in post 1, or a booster for 5G system? (The paste on was never a booster.)
by dyarker
Mon Jun 19, 2023 8:09 am
Forum: General Discussion
Topic: Antenna for Cell Phone!
Replies: 14
Views: 85532

Re: Antenna for Cell Phone!

well dang!
Make whole thread go away?
Or can user info be edited to clear location, disable user, and lock thread? It useful info other than spam sneak.
by dyarker
Sun Jun 18, 2023 4:49 am
Forum: General Discussion
Topic: Antenna for Cell Phone!
Replies: 14
Views: 85532

Re: Antenna for Cell Phone!

( :grin: a real post, will explain later if you want.)

I googled "cell phone booster". $20 seems way too low. Check Amazon or Best Buy, etcetera

Cheers,
by dyarker
Fri May 19, 2023 6:17 pm
Forum: General Discussion
Topic: Battery pack for Ivation cordless tool
Replies: 4
Views: 8585

Re: Battery pack for Ivation cordless tool

Do the B&D packs look like they will fit? Maybe a local store has a display model they'll let try.
(If it works buy at least one there as a "thankyou")
((something shopping the 'net can't do))

Cheers,
by dyarker
Sun May 07, 2023 10:59 pm
Forum: General Discussion
Topic: eking advice on choosing a driver circuit for high-power LED control with a microcontroller.
Replies: 5
Views: 27609

Re: eking advice on choosing a driver circuit for high-power LED control with a microcontroller.

you won't get an answer
I thought it was a qood question too
but was a spammer
I guess you posted above before it was deleted

cheers
by dyarker
Mon May 01, 2023 6:39 am
Forum: General Discussion
Topic: Contact (David Ponting)
Replies: 5
Views: 7672

Re: Contact (David Ponting)

On-line search gave a December 2004 reference to a December 2003 article about an adjustable resistive load. Is that the one?

I did not find the article itself. To be resistive I'm guessing FETs instead of humongous wire-wound pots.

And cmikowski has not logged in again.
Oh well . . .
by dyarker
Wed Apr 26, 2023 8:52 am
Forum: General Discussion
Topic: Contact (David Ponting)
Replies: 5
Views: 7672

David Ponting, contact please

cmikowski,

put the name in the subject so he'll see it (if he still visits, that is)
by dyarker
Wed Apr 05, 2023 8:35 pm
Forum: General Discussion
Topic: microphone parabolic
Replies: 14
Views: 141043

Re: microphone parabolic

Trash can lid "looks" circular instead of parabolic. (better than nothing I suppose.)((and easy to get :grin: ))

? where is lorence ?
by dyarker
Tue Apr 04, 2023 8:21 pm
Forum: Computer Programming
Topic: Web Development in 2023
Replies: 7
Views: 20752

Re: Web Development in 2023

Research the specifications and TEST, RETEST the pages off-line. An example - I had to do business with an agency (unnamed). Tried to open an on line account part was inputting my ZIP code. The web page kept telling me ZIP code must have 5 digits. Well my APO ZIP, and some New England states have &q...
by dyarker
Fri Mar 31, 2023 10:29 am
Forum: General Discussion
Topic: microphone parabolic
Replies: 14
Views: 141043

Re: microphone parabolic

Even if that is not the article (link in Janitor Tzap's post) I recommend reading it and the side bars (which are actually following bars).

Cheers,
by dyarker
Thu Mar 30, 2023 1:26 am
Forum: General Discussion
Topic: microphone parabolic
Replies: 14
Views: 141043

Re: microphone parabolic

I do not remember the article, and was never able to keep old magazines.

Is there a particular aspect you need help with?

To get same bandwidth as wired telephone system (300 HZ to 3400Hz) you will need a dish 1.3 meters (51.5 inches) in diameter

Cheers,
by dyarker
Mon Mar 20, 2023 8:48 pm
Forum: General Discussion
Topic: Capacitor
Replies: 7
Views: 36082

Re: Capacitor

above is spam by dowdkwy
not the up arrow
completely invisable, something "... cat...", use view source