betwixt
Super Moderator
Home Page
Find latest posts
View Articles
View Blog EntriesMini Statistics
- Join Date
- 4th July 2009
- Last Activity
- Today 09:20
- Blog Entries
- 0
- Avatar
1 Groups
Join Groups 0 Permission Groups
betwixt is not a member of any public groups
Awards
2nd Helpful MemberAchievements
7 years registeredRecent Visitors
This page has had 76,879 visits
- Tab Content
- betwixt's Activity
- About Me
- Friends
- Experience
-
Older Activity
-
Today, 09:20betwixt replied to a thread Need help for IC identification in Service Manuals, Requests, Repair TipsI'm not sure where it fits on the board from those pictures unless it's U4 (just below the big heat sink). I have tried to find a schematic for...3 replies | 103 view(s)
-
Today, 09:06Another thing: can you tell which is the source of the signals? I'm getting the impression this might be a 'dongle' to unlock something. If that's...9 replies | 181 view(s)
-
Today, 08:58betwixt replied to a thread Is polycarbonate plastic compatible with UV in Miscellaneous EngineeringMy only experience is with Polycarbonate sheeting in direct Sunlight. I have some here which has been exposed to the elements for more than 10 years...6 replies | 109 view(s)
-
Yesterday, 22:23betwixt replied to a thread Need help for IC identification in Service Manuals, Requests, Repair TipsIt would be useful to know the model number of the amplifier and the component ID on the circuit board in case anyone has a service manual for it. ...3 replies | 103 view(s)
-
Yesterday, 14:42It's a kind of 'snubber' circuit although more accurately a voltage clamp. As smijesh points out, when the TNY267 output transistor turns off, it...3 replies | 100 view(s)
-
Yesterday, 14:33betwixt replied to a thread Frequency divider on FM transmitter in RF, Microwave, Antennas and OpticsIt depends on how the modulation is applied to the carrier. Most systems directly modulate the VCO and that makes things difficult because the...3 replies | 79 view(s)
-
Yesterday, 13:28It could be a lot of things but most likely this is a memory leak. At each pass of some routine, more memory is requested but not released...6 replies | 140 view(s)
-
Yesterday, 13:22If you can get inside the source enclosure, the simple solution is to fit a current limiting circuit BEFORE the 5V regulator. That way the voltage...13 replies | 186 view(s)
-
Yesterday, 08:51The 12F519 is one of the most basic PICs ever made and is does not have a USART or SPI module on-board so whatever makes and recognizes these signals...9 replies | 181 view(s)
-
15th July 2018, 13:58Provided the two 5V regulators are happy to cooperate, I don't see anything wrong with doing that, even if it is an unusual task. All you have to be...1 replies | 68 view(s)
-
15th July 2018, 13:14Maybe it doesn't use a standard protocol. It looks more like SPI than I2C to me but that would imply a third signal is used. Please re-post the...9 replies | 181 view(s)
-
15th July 2018, 09:34betwixt replied to a thread Accessing usb uart from linux in Embedded Linux and Real-Time Operating Systems (RTOS)Show us what 'lsusb tells you. If you can see the UART in the list, type this: "lsusb -v -s xxx:yyy" where xxx:yyy is the Bus number and the...6 replies | 273 view(s)
-
15th July 2018, 09:22I would disagree with the boss then. I have two PV systems here, both grid tied. One has a maximum output of about 1.6KW and the other about 400W...8 replies | 177 view(s)
-
14th July 2018, 22:50betwixt replied to a thread Wish to set uop a company for electronics products in Business, Promotions, AdvertisingI would forget EU grants, in view of Brexit you would be extremely unlikely to get one now. Setting up a company is easy but be sure what type of...1 replies | 217 view(s)
-
14th July 2018, 13:07betwixt replied to a thread Accessing usb uart from linux in Embedded Linux and Real-Time Operating Systems (RTOS)Try /dev/ttyUSB0 or /dev/ttyUSB1. Brian.6 replies | 273 view(s)
-
13th July 2018, 21:46betwixt replied to a thread Using irf2110 IC for bldc motor control for low speed application in Elementary Electronic QuestionsPlease try again to attach the image. Brian.8 replies | 353 view(s)
-
13th July 2018, 10:36betwixt replied to a thread [moved] What type of UART I need ? in Service Manuals, Requests, Repair TipsFirstly, a UART alone will not fix it. If the problem is corrupted firmware in the router, a UART might be able to let you upload new firmware so...1 replies | 146 view(s)
-
12th July 2018, 21:09betwixt replied to a thread Transmitter antenna for a particular frequency in RF, Microwave, Antennas and OpticsNo confusion intended. Most posts here about RF energy harvesting are from people trying to magic electricity from existing EM waves (domestic...7 replies | 142 view(s)
-
12th July 2018, 21:01This is misleading: the voltage on the LEFT side of R25 should be about 1.95V when the switch is closed and about 0.05V when the switch is open. ...5 replies | 271 view(s)
-
12th July 2018, 17:08betwixt replied to a thread Transmitter antenna for a particular frequency in RF, Microwave, Antennas and OpticsRF energy harvesting works at any RF frequency. The primary consideration is that there is some RF to harvest in the first place. Use an antenna...7 replies | 142 view(s)
-
12th July 2018, 10:43Are you following the guidelines in the DHT11 data sheet, in particular the delay needed before initializing it and the need for a pull-up resistor...3 replies | 169 view(s)
-
12th July 2018, 10:38betwixt replied to a thread Embed a RFID label inside a soccer ball in RF, Microwave, Antennas and OpticsBoth types will work but I would suggest 15.36MHz to give a slightly longer range and to mount the RFID tag deep inside the ball. They are not...4 replies | 147 view(s)
-
12th July 2018, 08:31betwixt replied to a thread Low pass filter used b/w neutral and ground connection. in Analog Circuit DesignRead it carefully! It doesn't say 'ground' it says 'AGND'. It isn't ground as in Earth, it's the analog ground of the ADC circuit but it must...1 replies | 93 view(s)
-
11th July 2018, 17:30The program flow looks wrong to me. Try removing the 'continue' instructions completely, you want it to wait until 'GO' is zero then move to reading...4 replies | 159 view(s)
-
10th July 2018, 22:33Only what they tell you. If it could produce the 35V output it claims at 10A it would be a 350W converter so I think you have to take their word for...5 replies | 241 view(s)
-
10th July 2018, 19:31Oops! Missed that one, you are quite right Klaus. 12V should still be more than adequate though. Brian.8 replies | 185 view(s)
-
10th July 2018, 19:29betwixt replied to a thread CRT TV green color missing after sometime in Service Manuals, Requests, Repair TipsAlmost certainly this is a problem with components on the CRT base PCB. Check it for dry joints and intermittent potentiometers. It is also...8 replies | 404 view(s)
-
10th July 2018, 13:46From the data sheet Easyrider83 mentions: That isn't the same as going active low and active high. By adding your own external driver circuit you...10 replies | 286 view(s)
About betwixt
Basic Information
Optional Info
- Location:
- Aberdyfi, West Wales, UK
- Interests:
- Electronic design, TV production, photography, web site design
- Occupation:
- Retired senior engineer for a test equipment company but still very busy!
Signature
PLEASE - no friends requests or private emails, I simply don't have time to reply to them all.
It's better to share your questions and answers on Edaboard so we can all benefit from each others experiences.
It's better to share your questions and answers on Edaboard so we can all benefit from each others experiences.
Contact
Statistics
Total Posts
- Total Posts
- 11,770
- Posts Per Day
- 3.57
General Information
- Last Activity
- Today 09:20
- Join Date
- 4th July 2009
- Home Page
- http://www.atv-projects.com
Helpful Postings
- Has Rated
- 6
- Post Rated
- Rated helpful 3871 out of 3871 times
Experience
Points
- Points
- 71,870
- Level
- 65
Level up completed
- Level up completed
- 42%
- Points required
- 1,280
Activity
- Activity
- 99.9%
- Activity last 30 days
- 99.0%
- Activity last 7 days
- 99.8%
Points
All Points for user
- Points for User
- 15,436
- Points for Reputation
- 11,932
- Points for every day since registration
- 3,498
- Points for Friends
- 6
All Points for threads
- Points for threads
- 2,004
- Points for Threads
- 89
- Points for Social Group Discussions
- 4
- Points for tagging threads
- 1,666
- Points for replies
- 245
All Points for posts
- Points for Posts
- 54,410
- Points for Posts
- 34,991
- Points for Social Group Messages
- 4
- Points for uploading Attachments
- 40
- Average Posts per Day
- 3.00
- Helpful Answers
- 19,375
All Points for miscellaneous
- Points for Misc
- 20
- Points for posting Calendar Event
- 20
Activities
17th July 2018
- 03:06 betwixt has earned 5 Points for threads points
- 03:06 betwixt has earned 23 Points for Posts points
- 03:06 betwixt has earned 2 Points for User points
16th July 2018
- 03:06 betwixt has earned 2 Points for threads points
- 03:06 betwixt has earned 12 Points for Posts points
- 03:06 betwixt has earned 1 Points for User points
15th July 2018
- 03:06 betwixt has earned 3 Points for Posts points
14th July 2018
- 03:06 betwixt has earned 6 Points for Posts points
- 03:06 betwixt has earned 3 Points for threads points
- 03:06 betwixt has earned 1 Points for User points
13th July 2018
- 03:06 betwixt has earned 9 Points for Posts points
- 03:06 betwixt has earned 1 Points for threads points
12th July 2018
- 11:25 betwixt has earned 4 Points for threads points
- 11:25 betwixt has earned 2 Points for User points
- 11:25 betwixt has earned 14 Points for Posts points
- 03:06 betwixt has earned 8 Points for Posts points
- 03:06 betwixt has earned 3 Points for User points
11th July 2018
- 03:06 betwixt has earned 4 Points for threads points
- 03:06 betwixt has earned 4 Points for User points
- 03:06 betwixt has earned 31 Points for Posts points
Show Activities from all Users