Search found 39 matches

by Hinotori
Sat Mar 02, 2019 4:05 pm
Forum: for sale / freebies
Topic: FREE: Acorn User 1985 12 issues *GONE*
Replies: 4
Views: 522

Re: FREE: Acorn User 1985 12 issues *GONE*

Arrived and in great condition! Thanks again :)
by Hinotori
Thu Feb 28, 2019 4:32 pm
Forum: for sale / freebies
Topic: Declutter Sale (BBC B, A3010, Monitors, Printer)***ALL SOLD***
Replies: 9
Views: 1209

Re: Declutter Sale (BBC B, A3010, Monitors, Printer)

Hi!
Cub received in great time, well packed, working perfectly. Huge thanks!
by Hinotori
Thu Feb 28, 2019 4:27 pm
Forum: for sale / freebies
Topic: FREE: Acorn User 1985 12 issues *GONE*
Replies: 4
Views: 522

Re: FREE: Acorn User 1985 12 issues *GONE*

Fantastic!
Many thanks :)
by Hinotori
Wed Feb 20, 2019 12:35 pm
Forum: for sale / freebies
Topic: FREE: Acorn User 1985 12 issues *GONE*
Replies: 4
Views: 522

Re: FREE: Acorn User 1985 12 issues

Hi,

I would love to receive these if they are still available.
Please PM me!

Many thanks,

Alex
by Hinotori
Mon Feb 11, 2019 12:27 pm
Forum: for sale / freebies
Topic: BeebMaster BBC B Econet Kit
Replies: 61
Views: 5028

Re: BeebMaster BBC B Econet Kit

How many kits do you have left?

:)
by Hinotori
Tue Feb 05, 2019 8:20 pm
Forum: for sale / freebies
Topic: Declutter Sale (BBC B, A3010, Monitors, Printer)***ALL SOLD***
Replies: 9
Views: 1209

Re: Declutter Sale (BBC B, A3010, Monitors, Printer)

Hi!
I would love the 1 x Microvitec Cub 1431MS (DIN input, suits BBC B) if it is still available? :)
Alex
by Hinotori
Wed Jan 23, 2019 1:49 pm
Forum: hardware
Topic: BBC Model B faults
Replies: 16
Views: 1103

Re: BBC Model B faults

Thanks everyone for the advice. At this months ABUG meeting, RobC and I were able to find and fix the issue, with very kind support from a selection of other Stardot members too. Many thanks! :) The problem was that IC45 had failed and after running some scope checks had to be replaced as it was alw...
by Hinotori
Sat Jan 19, 2019 9:42 pm
Forum: upcoming and recent events & exhibitions
Topic: ABUG SOUTH 18 to 20 January 2019 (Hampshire) BOOKING THREAD
Replies: 134
Views: 8654

Re: ABUG SOUTH 18 to 20 January 2019 (Hampshire) BOOKING THREAD

Many thanks everyone for a great day and for so many interesting conversations!
Thanks to Robert for organising it and extra special thanks to Rob, Richard, Robert and Phil for helping out with my poorly Beeb.
Enjoy the rest of the weekend and I look forward to the next event.

Alex
by Hinotori
Mon Jan 14, 2019 1:40 pm
Forum: upcoming and recent events & exhibitions
Topic: ABUG SOUTH 18 to 20 January 2019 (Hampshire) BOOKING THREAD
Replies: 134
Views: 8654

Re: ABUG SOUTH 18 to 20 January 2019 (Hampshire) BOOKING THREAD

Hi, I am interested in attending (if it's not too late and I can arrange things with work). If I am only able to come for one day which one would be recommended? Also, I have an unhappy BBC B (https://stardot.org.uk/forums/viewtopic.php?f=3&t=16195) and a Valiant Turtle without a communicator. Would...
by Hinotori
Mon Jan 14, 2019 1:24 pm
Forum: hardware
Topic: BBC Model B faults
Replies: 16
Views: 1103

Re: BBC Model B faults

Happy new year Stardotters! I am back to trying to repair my faulty BBC B. I tried with the S25 jumper in the lower position and in the upper and have the same issues. @tricky - When I copy I just get a blank space, it doesn't copy the corrupt part of the image. Many thanks again all for the assista...
by Hinotori
Wed Dec 19, 2018 2:09 pm
Forum: hardware
Topic: BBC Model B faults
Replies: 16
Views: 1103

Re: BBC Model B faults

Hi All, Many thanks for the help! My ULA has a heatsink on it, they do get very warm. Here are a couple of photos of it in different modes. http://i66.tinypic.com/2llgbrd.jpg http://i63.tinypic.com/10fry1g.jpg And this is a photo of the screen following inputing MODE 0 COLOUR 129 CLS http://i65.tiny...
by Hinotori
Wed Dec 19, 2018 11:09 am
Forum: hardware
Topic: BBC Model B faults
Replies: 16
Views: 1103

Re: BBC Model B faults

Hi, Many thanks for the reply. It does happily boot up and functions as normal (beeps, caps lock light etc) apart from the display. When I remove S25 jumper the bootup screen looks like this: http://i66.tinypic.com/x28o4w.jpg When I replace the S25 jumper it looks like this: http://i67.tinypic.com/o...
by Hinotori
Mon Dec 17, 2018 2:24 pm
Forum: hardware
Topic: BBC Model B faults
Replies: 16
Views: 1103

BBC Model B faults

Hi, I was wondering if anyone has any insight or advice they could offer in troubleshooting a BBC Model B Micro I am trying to fix. It was working perfectly until recently but now displays random characters diagonally across the screen. This image is of it running 10 PRINT "TEST" 20 GOTO 10 http://i...
by Hinotori
Wed Jul 12, 2017 9:30 am
Forum: hardware
Topic: Help with voltage overload protection on Analogue in
Replies: 29
Views: 2399

Re: Help with voltage overload protection on Analogue in

Dear all! Many thanks for all the help, I managed to find some free time to return to this project and was pleased to notice that my original circuits were fine but the issue was human error (AKA extreme stupidity) as I had wired the 15 pin plug the wrong way round :oops: I'm pleased to say that it ...
by Hinotori
Tue Jul 11, 2017 2:08 pm
Forum: for sale / freebies
Topic: Beeb SD card interfaces for sale
Replies: 46
Views: 8718

Re: Beeb SD card interfaces for sale

I have 3 of these and can say that they are really great! Thanks for making them!
by Hinotori
Thu Jun 22, 2017 3:35 pm
Forum: hardware
Topic: Help with voltage overload protection on Analogue in
Replies: 29
Views: 2399

Re: Help with voltage overload protection on Analogue in

The Pots are Alpha B5k pots

The book I referred to recommended 4k7 but I only have 5k.

Does the metal casing of a D-sub socket need connecting to ground?
by Hinotori
Thu Jun 22, 2017 2:59 pm
Forum: hardware
Topic: Help with voltage overload protection on Analogue in
Replies: 29
Views: 2399

Re: Help with voltage overload protection on Analogue in

I'm connecting between the analogue synth and the interface using mono jacks, I've encountered the stereo cable problem before, so I can rule that out. I really feel it's something to do with ground. I will try the battery test. thanks again for all the assistance, I am hoping to crack this one and ...
by Hinotori
Wed Jun 21, 2017 11:55 am
Forum: hardware
Topic: Help with voltage overload protection on Analogue in
Replies: 29
Views: 2399

Re: Help with voltage overload protection on Analogue in

Hi! Here are a couple of pictures of the board and wiring, I am using 3.5 mono switched jacks with nothing connected to switch. IMG_2204.jpg IMG_2206.jpg IMG_2208.jpg At the moment there are only 2 inputs wired up ADVAL(0) and ADVAL(1), until I pick up a couple more pots. As you can see I have gone ...
by Hinotori
Tue Jun 20, 2017 8:52 pm
Forum: hardware
Topic: Help with voltage overload protection on Analogue in
Replies: 29
Views: 2399

Re: Help with voltage overload protection on Analogue in

Many thanks for all the detailed information, theres lots for me to learn there, thanks! I have built an interface box now on veroboard and quadruple checked the continuity and connections and everything seems in order, however, whenever I connect a signal (via 3.5mm mono jack) from my synthesizer t...
by Hinotori
Sun Jun 18, 2017 3:43 pm
Forum: hardware
Topic: Help with voltage overload protection on Analogue in
Replies: 29
Views: 2399

Re: Help with voltage overload protection on Analogue in

Thanks! I was just reading this thread and wondered if I need the 100nF capacitor C1 in the circuit 1024MAK posted: http://stardot.org.uk/forums/viewtopic.php?f=3&t=12333&p=157078&hilit=adval#p157078 I currently have no capacitor between my input jack and variable resistor/potentiometer voltage divi...
by Hinotori
Sun Jun 18, 2017 3:35 pm
Forum: hardware
Topic: Help with voltage overload protection on Analogue in
Replies: 29
Views: 2399

Re: Help with voltage overload protection on Analogue in

@MartinB - Mine were fluctuating in the high 45k-65k range too. I checked them by shorting them to ground and they read near 0 and when shorting to Vref they read near 65k... So I shouldn't worry about this and go ahead and test my veroboard design? @dp11 - the source is the 5V peak to peak output o...
by Hinotori
Sun Jun 18, 2017 2:57 pm
Forum: hardware
Topic: Help with voltage overload protection on Analogue in
Replies: 29
Views: 2399

Re: Help with voltage overload protection on Analogue in

Many thanks DP11, very in depth info! I won't really need the DC so AC coupling sounds like a good idea, any pointers on how and where in the circuit to do this are very welcome :) Before attaching my veroboard design I thought I would test out my Analogue port. On page 13 of DIY Robotics and Sensor...
by Hinotori
Sun Jun 18, 2017 11:43 am
Forum: hardware
Topic: Help with voltage overload protection on Analogue in
Replies: 29
Views: 2399

Re: Help with voltage overload protection on Analogue in

fantastic information, thanks! I'm learning a lot from this thread. The voltages that I will be sending will be in the range of 0 to 5V or -2.5 to 2.5V. They will then pass through a 5k voltage divider/attenuator to bring the voltage levels down (I've yet to sort out a solution for offsetting the po...
by Hinotori
Sun Jun 18, 2017 8:54 am
Forum: hardware
Topic: Help with voltage overload protection on Analogue in
Replies: 29
Views: 2399

Re: Help with voltage overload protection on Analogue in

Hi! Many thanks, I will go with the 2 Bat42 diode route. Speed is an important factor too. The incoming voltage will often go above 1.8V but I have built some passive attenuators/voltage dividers on the inputs to scale down before going into the protection circuit. I'm still learning electronics and...
by Hinotori
Sat Jun 17, 2017 1:55 pm
Forum: hardware
Topic: Help with voltage overload protection on Analogue in
Replies: 29
Views: 2399

Help with voltage overload protection on Analogue in

Hi All, I am building some interfaces for the Analogue In port of my BBC Micro Model B and would love someones expert opinion on a voltage overload protection circuit I am building. I am looking to voltage clamping/capping/limiting from an external 0-5V down to the 1.8V that the Micro is happy with....
by Hinotori
Wed Jun 14, 2017 2:24 pm
Forum: for sale / freebies
Topic: BBC Micro games/software/books/ephemera for sale (plus a few free to a good home things)
Replies: 21
Views: 2960

Re: BBC Micro games/software/books/ephemera for sale (plus a few free to a good home things)

I would like to have the following, also PM'd Cybertron Mission (Micropower) Escape from Moonbase Alpha (Micropower) Felix in the Factory (Micropower) Killer Gorilla (Micropower) Moonraider (Micropower) Swoop (Micropower) Mystery of the Java Star (Shards) Invaders (Superior) Podd (Acornsoft) Dunjunz...
by Hinotori
Thu Jun 08, 2017 1:32 pm
Forum: wanted
Topic: WTB Valiant Turtle + Communicator
Replies: 0
Views: 612

WTB Valiant Turtle + Communicator

Hi,
I'm keen to buy a Valiant Turtle learning robot and communicator.
The earlier green cased version as seen on this site:
http://roamerrobot.tumblr.com/post/2307 ... tle-robots
Please PM me if you have one with communicator in working condition to sell.
Many thanks!
by Hinotori
Thu Jun 08, 2017 11:40 am
Forum: for sale / freebies
Topic: BBC Rover / Logo bot
Replies: 30
Views: 2494

Re: BBC Rover / Logo bot

Hi!
Is this still available?