Search found 28 matches

by Markkim
Sun May 29, 2022 11:41 pm
Forum: General Discussion
Topic: How to use/wire a DPDT relay
Replies: 3
Views: 14417

How to use/wire a DPDT relay

Hi, I have a question
I have an actuator that I want to keep closed whole my vehicle is turned on. However I want the actuator to open if I press on my car brakes. Is there a way to wire this using relays?
Please and thank you.
by Markkim
Thu May 12, 2022 7:52 pm
Forum: General Discussion
Topic: How should I operate a Bussmann fuse tester?
Replies: 9
Views: 15039

Re: How should I operate a Bussmann fuse tester?

The information about fuse tester can refer to the blog
by Markkim
Thu May 12, 2022 7:51 pm
Forum: General Discussion
Topic: How should I operate a Bussmann fuse tester?
Replies: 9
Views: 15039

How should I operate a Bussmann fuse tester?

2508 - 210527 1. Watch one of the many videos available on YouTube. 2. Follow the instructions included with the tester. Remember that there are many various types of fuses, such as milliampere fuses, slow blow fuses, fast blow fuses, electronic fuses, and so on. Low-cost testers are simply continui...
by Markkim
Thu May 05, 2022 2:44 am
Forum: General Discussion
Topic: Battery Tester
Replies: 1
Views: 9369

Battery Tester

I'm wanting to purchase a digital battery tester because I have a lot of battery-related equipment and perform some work for others. I don't want a POS and would prefer to stay for around $100. Any recommendations? I despise having to remove the battery and take it to a parts store to be checked out...
by Markkim
Thu May 05, 2022 12:58 am
Forum: General Discussion
Topic: Laptop with a Backlit Keyboard
Replies: 1
Views: 9482

Laptop with a Backlit Keyboard

Hi, I have a question now My laptop is lenovo ideapad 330. My laptop has a backlight but ever since I reclaimed my laptop from fixing its LCD I tried pressing it the first time and it worked but it was blinking then I pressed the button again (Fn + Spacebar) it doesn't turn on anymore. Do I replace ...
by Markkim
Sat Apr 23, 2022 2:06 am
Forum: Robotics
Topic: The Robot Baby Problem
Replies: 0
Views: 45868

The Robot Baby Problem

I read an article about robot baby. I am very interested about the robot baby Unlike ordinary robots, robot babies are enhanced in a variety of ways. They not only have the same appearance as real babies, but they can also select the skin tone of other countries. Facial expressions play a vital role...
by Markkim
Thu Apr 14, 2022 1:11 am
Forum: General Discussion
Topic: How to identify a potentiometer?
Replies: 2
Views: 9157

How to identify a potentiometer?

I'm looking for the specifications of an unlabeled potentiometer . I'm looking for a pot that fits the specifications of the one I have. I'd like to add a second pot to the circuit so that I may control it from two different locations. I've recognized the wires and voltages, but I'm not sure how to ...
by Markkim
Mon Mar 21, 2022 12:38 am
Forum: General Discussion
Topic: BS170 Transistor
Replies: 2
Views: 9590

BS170 Transistor

Utilizing a microprocessor to regulate the gate, I'm using a BS170 Transistor to turn on/off a sequence of LEDs. My transistor appears to have stopped working because it never turns off. Is this a sign that the transistor has blown?
by Markkim
Tue Feb 22, 2022 1:26 am
Forum: General Discussion
Topic: 18650 Using Issue for Beginner
Replies: 7
Views: 19115

18650 Using Issue for Beginner

Hello all, I just committed an inadvertent blunder that I thought I'd share in case it might help others. I ordered a couple of 18650 Lithium Ion batteries for a robot vehicle that I'm building. I saw that these batteries were "protected" at the using note (content source from blog ) that ...
by Markkim
Thu Jan 27, 2022 12:34 am
Forum: General Discussion
Topic: Question about Electrical Grounding
Replies: 1
Views: 1639

Question about Electrical Grounding

Good day all, I have a circuit of 10/2 connected from an auto-transfer switch mounted on the back of the power center to the outside cabinet where my solar system will be installed shortly. I'll attach an plug which will always be plugged into the inverter (after I reviewed it from blog ). The inver...
by Markkim
Thu Jan 27, 2022 12:30 am
Forum: General Discussion
Topic: New Step Up Transformer
Replies: 4
Views: 3000

Re: New Step Up Transformer

Thank you for replies. Recently I use it with an urushi tsugaru. Its a very understated exterior design but sounds outstanding. I assume its all about the inner design. And I try to use a new SUT with old Koetsu cartridge usually does not give good result. The transformers were wired and tuned to su...
by Markkim
Fri Dec 31, 2021 1:25 am
Forum: General Discussion
Topic: Arduino LED Blinking Project Issue
Replies: 6
Views: 15436

Arduino LED Blinking Project Issue

Hi folks, Recently I got an idea from arduino projects list (basic codes source: blog ) and learn something about led lighting from . well, this is my thought: I need to toggle between 2 led for example led 13 and led 11, led 13 blink for 30 minute and led 11 off, and then led 11 blink for 30 minute...
by Markkim
Wed Dec 08, 2021 12:58 am
Forum: General Discussion
Topic: New Step Up Transformer
Replies: 4
Views: 3000

New Step Up Transformer

Hi, all
I know Koetsu recently came out with a new step up transformer. Has anyone heard it and if so what did you think? Which cartridge did you use? Or can a step-down transformer be used as a step-up transformer? (which comes from blog)
Thank you in advance.
by Markkim
Wed Dec 08, 2021 12:31 am
Forum: General Discussion
Topic: Starter Relay Trouble
Replies: 6
Views: 4489

Re: Starter Relay Trouble

Thank you for you replies. Started at basics and went over all the fuses again. Turns out it was the 50amp fuse. Guess my eye sight isn't as good as it once was. Most dealers are out of that but was able to find it at a dealer over an hour from my house, if not would have had to wait about a week fo...
by Markkim
Mon Oct 18, 2021 2:35 am
Forum: General Discussion
Topic: Starter Relay Trouble
Replies: 6
Views: 4489

Starter Relay Trouble

Hello, all I have a 2004 Yamaha R1 which I bought salvage and I am putting together. I had the bike running with no problems and started up every time. I recently replaced the battery because the other was the original and didn't even have enough charge to start the bike. I also recently replaced th...