Search found 4381 matches
- Mon Jul 24, 2023 11:08 am
- Forum: Nuts & Volts Magazine Discussions
- Topic: Western Electric Vacuum Tubes
- Replies: 32
- Views: 390148
Re: Western Electric Vacuum Tubes
I bet if EDD was still around, he'd tell you all about it... Anyone know where or what he's up to now days ?
- Wed Jul 19, 2023 7:05 am
- Forum: Nuts & Volts Magazine Discussions
- Topic: Western Electric Vacuum Tubes
- Replies: 32
- Views: 390148
Re: Western Electric Vacuum Tubes
So whats the difference in performance of large punch or small punch ? I never heard of this term before..
- Thu May 25, 2023 11:28 am
- Forum: Reader Projects
- Topic: Building a CNC Router
- Replies: 7
- Views: 65681
Re: Building a CNC Router
DC motors can be ok if you have a gear box and high gear ratio... all depends on your use. I have torn down huge plotter printers and they had DC motors and encoders, and high geared. and the encoder tape. I couldn't even see the lines on it unless i used magnifying lens.. big gear ratios are easier...
- Mon May 08, 2023 10:11 am
- Forum: General Discussion
- Topic: eking advice on choosing a driver circuit for high-power LED control with a microcontroller.
- Replies: 5
- Views: 40418
Re: eking advice on choosing a driver circuit for high-power LED control with a microcontroller.
Oh well, It looked legit...
- Sun May 07, 2023 7:15 pm
- Forum: General Discussion
- Topic: eking advice on choosing a driver circuit for high-power LED control with a microcontroller.
- Replies: 5
- Views: 40418
Re: eking advice on choosing a driver circuit for high-power LED control with a microcontroller.
why not use a buck / boost converter ? Or get an adjustable driver..
what voltages and current are you working with?
What use of the leds ? constant load or intermittent ?
the more info the better..
what voltages and current are you working with?
What use of the leds ? constant load or intermittent ?
the more info the better..
- Wed Apr 05, 2023 4:59 am
- Forum: General Discussion
- Topic: microphone parabolic
- Replies: 14
- Views: 163654
Re: microphone parabolic
grab you an old 8ft fiberglass dish....lol.. mount the mic. right where the feed horn went to.
seen a demo at a science fair before,, was impressive..
seen a demo at a science fair before,, was impressive..
- Tue Mar 14, 2023 9:04 am
- Forum: General Discussion
- Topic: Looking for a Blue Led display 4-dig. - 7-segment
- Replies: 17
- Views: 73237
Re: Looking for a Blue Led display 4-dig. - 7-segment
Sorry, i see that now.. Yeah, this isn't going to be feasible.
thanks anyway.
thanks anyway.
- Mon Mar 13, 2023 2:46 pm
- Forum: General Discussion
- Topic: Looking for a Blue Led display 4-dig. - 7-segment
- Replies: 17
- Views: 73237
Re: Looking for a Blue Led display 4-dig. - 7-segment
Dyarker >> what about the columns? is that going to be an issue as well ? gonna be really hard to make All that fit.. I don't think it's gonna be feasible to do.. I gotta do more thinking..Gotta see if there's something easier. too bad I can't just short out 1 led per segment.. then it would run off...
- Mon Mar 13, 2023 8:46 am
- Forum: General Discussion
- Topic: Looking for a Blue Led display 4-dig. - 7-segment
- Replies: 17
- Views: 73237
Re: Looking for a Blue Led display 4-dig. - 7-segment
well, the thing is... Unknowingly I bought the backpack boards before i bought the led displays. I was hoping to resolve the issue by possibly with an adapter board, but that won't be possible. I have some other boards that drove larger 7 seg led ( TPIC6B596 ) It's easy to use too, but i haven't had...
- Fri Mar 10, 2023 8:39 am
- Forum: General Discussion
- Topic: Looking for a Blue Led display 4-dig. - 7-segment
- Replies: 17
- Views: 73237
Re: Looking for a Blue Led display 4-dig. - 7-segment
Update to the Blue displays.. come to find out these displays need more power than the HT16K33 can supply, China Lied to me again..I told them i needed a low voltage Blue led display. the lady said the leds only need 3.2V to operate, But failed to tell me that the display had 2 leds in series per se...
- Sat Feb 04, 2023 7:45 pm
- Forum: General Discussion
- Topic: Is Nuts and Volts dead ?
- Replies: 114
- Views: 3982123
Re: Is Nuts and Volts dead ?
cool deal...!!
- Fri Feb 03, 2023 5:42 am
- Forum: General Discussion
- Topic: Is Nuts and Volts dead ?
- Replies: 114
- Views: 3982123
Re: Is Nuts and Volts dead ?
At the bottom of this page and all other post, To the right of the REPLY button is a down arrow with some lines.
click that and it gives you the options on how to view the page.. newest to oldest or oldest to newest.. easy.
click that and it gives you the options on how to view the page.. newest to oldest or oldest to newest.. easy.
- Wed Feb 01, 2023 7:17 pm
- Forum: General Discussion
- Topic: Looking for a new gadget....maybe new idea ?
- Replies: 11
- Views: 59945
Re: Looking for a new gadget....maybe new idea ?
I kinda found something I am gonna tinker with.. I found in my Junk box a remote controlled Panic Button, and the receiver. I'm gonna tinker with it and see what it's range is.. It was for an alarm system at work long ago..
- Wed Feb 01, 2023 10:32 am
- Forum: General Discussion
- Topic: EXTEC meters E320X
- Replies: 16
- Views: 74977
Re: EXTEC meters E320X
How would you connect the leads to the cell phone ? Certainly not thru the USB port, unless there's an adapter.
I sure wouldn't wanna push HV thru my ports..
I sure wouldn't wanna push HV thru my ports..
- Wed Feb 01, 2023 10:29 am
- Forum: General Discussion
- Topic: Looking for a new gadget....maybe new idea ?
- Replies: 11
- Views: 59945
Re: Looking for a new gadget....maybe new idea ?
That's a bit over my head..
I am not that good into circuit design.
I was kinds hoping to cobble something together or off the shelf..
I am not that good into circuit design.
I was kinds hoping to cobble something together or off the shelf..