Search found 2920 matches

by Elminster
Sun Sep 23, 2018 9:46 am
Forum: hardware
Topic: I2C 4 U
Replies: 248
Views: 15088

Re: I2C 4 U

Was going to use paper clips and crocodile clips!
by Elminster
Sun Sep 23, 2018 9:33 am
Forum: hardware
Topic: I2C 4 U
Replies: 248
Views: 15088

Re: I2C 4 U

More boo because the electron and monitor sit on top of master so I have to remove it all to get at analogue port, to test new features. Easy just to get beeb out of storage complex (plastic box on top of wardrobe). Plus I didn’t want everyone praise to go to your head, so I am grounding you. So now...
by Elminster
Sun Sep 23, 2018 9:27 am
Forum: hardware
Topic: What are people happy soldering ?
Replies: 26
Views: 352

Re: What are people happy soldering ?

Yup. I find if I've overdone it I can just drag all the excess up to one end and wick it off. Did we mention flux? Flux. Flux flux. Ditto. Plus a large supply of flux remover and/or IPA to remove horrid sticky mess you get left with! I have no idea if those aoyue tips fit a hakko (I think not), but...
by Elminster
Sun Sep 23, 2018 8:42 am
Forum: hardware
Topic: What are people happy soldering ?
Replies: 26
Views: 352

Re: What are people happy soldering ?

I mainly use these

Aoyue heat element chisel tips

They may work in Hakkos, not sure. But think I read somewhere they do.
by Elminster
Sat Sep 22, 2018 10:08 pm
Forum: hardware
Topic: I got a Freebeeb! Help needed…
Replies: 11
Views: 208

Re: I got a Freebeeb! Help needed…

Welcome to the forum. Looks a good freebeeb(ie)
1024MAK wrote:
Sat Sep 22, 2018 7:28 pm

Don’t eat, drink or smoke while soldering. Then afterwards, clean your hands with soap. That’s it, that’s all the safety precautions you need.
Will have to stop using my beer hat when soldering.
by Elminster
Sat Sep 22, 2018 10:03 pm
Forum: hardware
Topic: I2C 4 U
Replies: 248
Views: 15088

Re: I2C 4 U

MartinB wrote:
Sat Sep 22, 2018 8:09 pm

2) There is no Electron version of V3 since the Elk has no electrically equivalent Analogue Port
Boo
3) Reading the manual is strongly advised!
A novel idea.

Just as I thought I was catching up on my projects, the goal posts move. Might give this a go on the beeb I fixed.
by Elminster
Sat Sep 22, 2018 2:34 pm
Forum: hardware
Topic: What are people happy soldering ?
Replies: 26
Views: 352

Re: What are people happy soldering ?

using a fine pointy tip. There's your mistake :wink: Indeed. I use a fine bevel for smd components but to drag an IC I use the same bevel tip I use for through hole. If I don’t I cant get the heat to keep the solder melted while dragging (thermal mass and all that jargon). Even with low melt solder.
by Elminster
Sat Sep 22, 2018 2:30 pm
Forum: hardware
Topic: Poorly Master
Replies: 5
Views: 90

Re: Poorly Master

Easy on a beeb as the 6522s are socketed and you can just pull them and see if it boots. But being a master they are probably soldered in.

Have you tried booting without the keyboard attached at all. Sometimes that works
by Elminster
Sat Sep 22, 2018 2:26 pm
Forum: hardware
Topic: What are people happy soldering ?
Replies: 26
Views: 352

Re: What are people happy soldering ?

I seriously recommend people try a bit of surface mount - it's actually much easier than it looks and it's so much neater! Agreed. A quick tutorial from Dave H. A while ago was all I need for confidence. Now I just drag solder, originally I was soldering each pin individually which takes ages. You ...
by Elminster
Sat Sep 22, 2018 9:21 am
Forum: off-topic
Topic: Poly 1 Computer
Replies: 7
Views: 137

Re: Poly 1 Computer

Looks interesting. There are several bbc emulators about already, and always crying out for people to help maintain and improve them. Don’t remember any being written in Java though. If you have t seen this post this may interest you post poly1. https://stardot.org.uk/forums/viewtopic.php?f=4&t=1555...
by Elminster
Sat Sep 22, 2018 8:38 am
Forum: hardware
Topic: What are people happy soldering ?
Replies: 26
Views: 352

Re: What are people happy soldering ?

Those are 0.65. If you're thinking about the sd socket on the beebscsi, the trick is to tin the pads, cover it in flux, place the socket in the right position and then hot air it whilst applying light pressure with tweezers. Pasting without the paste :D Yep. I did that for the tant’s, but because t...
by Elminster
Sat Sep 22, 2018 8:30 am
Forum: general
Topic: Does anyone 'own' SSD and DSD
Replies: 21
Views: 326

Re: Does anyone 'own' SSD and DSD

The reason I need this is because I am writing a plugin that works on the UTIs but the system will just ignore it if it imports or exports them because it is a plugin so is not eligible to import / export by itself. That has to be done by an application. It sounds like Apple are totally crackers to...
by Elminster
Sat Sep 22, 2018 8:20 am
Forum: introduce yourself
Topic: Hi my friends!
Replies: 9
Views: 92

Re: Hi my friends!

Welcome to the forum. Enjoy. Keep us posted on you projects.
by Elminster
Fri Sep 21, 2018 9:33 pm
Forum: general
Topic: Today I received.....
Replies: 4792
Views: 327471

Re: Today I received.....

Couple more books for the collection, getting hard to get reasonbly priced books these days, a least ones I dont already have. Yes, I've found that too. People are asking ridiculous prices for things these days. Nice collection, by the way. :D Thanks. I am sure there are some good bargains to be ha...
by Elminster
Fri Sep 21, 2018 9:26 pm
Forum: hardware
Topic: What are people happy soldering ?
Replies: 26
Views: 352

Re: What are people happy soldering ?

I guess the smallest pitch I have done is whatever is on the BeebSCSI. Seemed pretty small. They weren't too bad. But I dont find the ICs too hard, it is the weird ones with inaccesible pads and you dont have solder paste to hand that are hard.
by Elminster
Fri Sep 21, 2018 8:25 pm
Forum: general
Topic: Today I received.....
Replies: 4792
Views: 327471

Re: Today I received.....

Couple more books for the collection, getting hard to get reasonbly priced books these days, a least ones I dont already have.
by Elminster
Fri Sep 21, 2018 8:18 pm
Forum: off-topic
Topic: Convert master psu to bench psu
Replies: 27
Views: 735

Re: Convert master psu to bench psu

Slowly getting there. I use the word 'prototype' to negate wonky holes. Not actuall a master psu in sight of course. That idea went away. Has 2 PSUs. 1 for the 30v/5A supply and the other drives the fans and eventually the 5V/3.3V 1.5A supply. (Hence the extra holes, the final extra hole is for Eart...
by Elminster
Fri Sep 21, 2018 9:05 am
Forum: hardware
Topic: Model B serial speeds
Replies: 11
Views: 321

Re: Model B serial speeds

Semi related but I just happened to have watched this recently on Mike's channel, and this thread reminded me of it.

https://www.youtube.com/watch?v=SYnO9CsTEqQ

Edit: Ignore the title/description. It doesnt explain this is doing various serial applications. (for first 10 mins )
by Elminster
Fri Sep 21, 2018 8:50 am
Forum: hardware
Topic: BeebSCSI 7_7
Replies: 58
Views: 1282

Re: BeebSCSI 7_7

Thanks. That is todays job. See if the SDCard slot works, that was harder to solder than the Atmel or Xlinix, I should have put it on first instead of last. My only comment on the build of board v7.7 (so far) is because I am using jumper wires to power the 5v rather than the proper connector, I have...
by Elminster
Thu Sep 20, 2018 9:07 pm
Forum: hardware
Topic: BeebSCSI 7_7
Replies: 58
Views: 1282

Re: BeebSCSI 7_7

Right you are. Programming it first and then doing the fuses did the job.

Now have the flashing green LED (I wasnt convinved I had not put on the SMD LED either backwards or upside down till about 60 seconds ago when it started flashing!)
by Elminster
Thu Sep 20, 2018 8:21 pm
Forum: hardware
Topic: BeebSCSI 7_7
Replies: 58
Views: 1282

Re: BeebSCSI 7_7

Adaptor came at last. Waited 20 mins not seeing device till I realised you need to use Daisy Chain function to set the right device. But what am I doing wrong now while setting the fuses? Not used ATMEL ICE before, throwing an error. Only difference is my target device says 3.3v and the picture on t...
by Elminster
Wed Sep 19, 2018 8:55 am
Forum: for sale / freebies
Topic: BBC / ELK Dual Digital Joystick Adapter
Replies: 37
Views: 2802

Re: BBC / ELK Dual Digital Joystick Adapter

Tricky made some joystick kits as well if Bryce is not doing any more (or just out of stock).

The link will be in the hardware list in my signature below. Will dig it out in a min.

Edit: Thread is here for Trcky's joystick stuff viewtopic.php?f=3&t=14355
by Elminster
Mon Sep 17, 2018 10:21 pm
Forum: off-topic
Topic: JDS6600 sig gen, earth and thoughts
Replies: 7
Views: 136

Re: JDS6600 sig gen, earth and thoughts

Under normal usage you dont really see the mains
IMG_4465.jpg
I did manage to get this passing the sig gen through the ac input of a bridge rectifier but that is probably cause i was just doing something odd.

Will have to screenshot it, well I did but in .wfm by mistake.
by Elminster
Mon Sep 17, 2018 9:20 pm
Forum: off-topic
Topic: JDS6600 sig gen, earth and thoughts
Replies: 7
Views: 136

Re: JDS6600 sig gen, earth and thoughts

So 5V at 2A is not uncommon. It may be possible to find a better quality PSU. Yes, the extra terminal for grounding would be on the signal generator. Mark How do you mean better quality? The 5v linear ones are £40 as mentioned above, or do you mean better quality switched? Edit: typically something...
by Elminster
Mon Sep 17, 2018 8:26 pm
Forum: off-topic
Topic: JDS6600 sig gen, earth and thoughts
Replies: 7
Views: 136

Re: JDS6600 sig gen, earth and thoughts

1024MAK wrote:
Mon Sep 17, 2018 8:06 pm
Yes. But in the longer term, you would be better off adding a 4mm green coloured socket or a “grounding” combined screw and 4mm terminal.
On the sig gen? Not opened it up so not sure what is inside, although usuall there is load of space, especially as it uses external power brick.
by Elminster
Mon Sep 17, 2018 8:16 pm
Forum: off-topic
Topic: JDS6600 sig gen, earth and thoughts
Replies: 7
Views: 136

Re: JDS6600 sig gen, earth and thoughts

Of the sig gen? Only 5v wall wart. A couple of amps max.

Edit: exactly right. Wall work is 5v dc max 2000mA. The manual does say what the unit required beyond 5v dc +/- 0.5 v. Using a barrel jack
by Elminster
Mon Sep 17, 2018 8:00 pm
Forum: off-topic
Topic: JDS6600 sig gen, earth and thoughts
Replies: 7
Views: 136

Re: JDS6600 sig gen, earth and thoughts

Also now hooked it up to windows 10 VM and not only does it work but the software seems reasonably good. No real manual but you can program all you 60 arb waves quie easily using the software and control just about every function on the sig gen. Only odd thing is looks like the only thing you cant d...
by Elminster
Mon Sep 17, 2018 7:54 pm
Forum: off-topic
Topic: JDS6600 sig gen, earth and thoughts
Replies: 7
Views: 136

JDS6600 sig gen, earth and thoughts

I wonder if there should be a tools or non retro hardware board as I seem to write a lot of off-topic topics. Anyway. Following on from this post https://stardot.org.uk/forums/viewtopic.php?f=41&t=5594&start=4740#p214658 and this reply, which I was aware of already. https://stardot.org.uk/forums/vie...
by Elminster
Mon Sep 17, 2018 6:20 pm
Forum: hardware
Topic: AP3-4 - Redesign - First Thoughts
Replies: 23
Views: 857

Re: AP3-4 - Redesign - First Thoughts

Started them at ABUG, but took me most of the weekend to do 2x beebscsi cards. This weekend I did some work on my bench supply project.
by Elminster
Mon Sep 17, 2018 5:52 pm
Forum: hardware
Topic: AP3-4 - Redesign - First Thoughts
Replies: 23
Views: 857

Re: AP3-4 - Redesign - First Thoughts

Have to keep Dave busy.