Search found 384 matches

by stephen_usher
Tue Jan 21, 2020 10:59 am
Forum: CHAT FORUM
Topic: Have I mentioned how much I hate soldering surface mount stuff?
Replies: 8
Views: 125

Re: Have I mentioned how much I hate soldering surface mount stuff?

Oh well, and now I find that I've ordered the wrong sized components as the manfacturer's size codes are impenetrable. I spent about half an hour pawing through the spec sheets trying to work out what dimensions the components were. *sigh*

The 47uF ones are too small and the 10uF ones too large.
by stephen_usher
Tue Jan 21, 2020 9:21 am
Forum: CHAT FORUM
Topic: Have I mentioned how much I hate soldering surface mount stuff?
Replies: 8
Views: 125

Re: Have I mentioned how much I hate soldering surface mount stuff?

As it happens, I do have pictures. I always document the "before" state so I can refer back to it...
IMG_1751.jpg
IMG_1751.jpg (141.24 KiB) Viewed 59 times
IMG_1755.jpg
IMG_1755.jpg (135.72 KiB) Viewed 59 times
by stephen_usher
Tue Jan 21, 2020 9:01 am
Forum: CHAT FORUM
Topic: Have I mentioned how much I hate soldering surface mount stuff?
Replies: 8
Views: 125

Re: Have I mentioned how much I hate soldering surface mount stuff?

Of course you can't do that if the cap is right next to a sensitive plastic part. That would be the case for two 10uF and two 1uF caps on the Macintosh Portable.
by stephen_usher
Mon Jan 20, 2020 10:12 pm
Forum: CHAT FORUM
Topic: Have I mentioned how much I hate soldering surface mount stuff?
Replies: 8
Views: 125

Have I mentioned how much I hate soldering surface mount stuff?

I'm recapping a Macintosh Portable and it's a lot of surface mount capacitors... Horrid things! It does help that they're nearly falling off the circuit board a lot of the time. I try to cut them so as not to stress the board but they just come away. Of the 10 47uF caps all but two did this. Then th...
by stephen_usher
Tue Jan 14, 2020 10:23 am
Forum: ELECTRONICS
Topic: Board cleaning
Replies: 12
Views: 525

Re: Board cleaning

Apparently, if you use the correct "salt" it has anti-corrosion chemicals which means that it's possibly even good for the electronic equipment. Just don't use the drying cycle!
by stephen_usher
Fri Jan 10, 2020 9:39 am
Forum: MEMBER BLOGS
Topic: PhilCs blog / the latest things hes broken(fixed)
Replies: 149
Views: 16083

Re: PhilCs blog / the latest things hes broken(fixed)

How about this site for the PS conversion? https://www.ps2pdf.com/
by stephen_usher
Wed Jan 08, 2020 2:08 pm
Forum: SOFTWARE PROGRAMMING & DISCUSSION
Topic: 32bit CPU with 16bit software ?
Replies: 4
Views: 150

Re: 32bit CPU with 16bit software ?

The 68000 wouldn't be able to access 32 bit RAM directly anyway as it has a 16 bit data bus. However the 68020/030 etc. can access a 32 bit bus directly. In the case of the 68030 with its data and instruction caches this would benefit processing, even if the instructions themselves are 16 bit as the...
by stephen_usher
Wed Jan 08, 2020 12:11 pm
Forum: CHAT FORUM
Topic: The mince pie dilemma
Replies: 7
Views: 183

Re: The mince pie dilemma

Well, it's not sentient yet, so eat it.
by stephen_usher
Sun Jan 05, 2020 10:53 am
Forum: CHAT FORUM
Topic: Atari TT 512MB RAM
Replies: 5
Views: 188

Re: Atari TT 512MB RAM

I was wondering how much swap he'd given the machine. Then again the swap partition on a BSD box should only be 'RAM-size x 2' anyway.
by stephen_usher
Sun Jan 05, 2020 10:49 am
Forum: CHAT FORUM
Topic: Not Atari, but... Any ideas about this Amiga issue?
Replies: 0
Views: 72

Not Atari, but... Any ideas about this Amiga issue?

I've been trying to get the Amiga A1200 hooked up with the OSSC scan converter via VGA and have hit an issue with display noise. When connected via SCART the display looks lovely, but that can only handle 15KHz interlaced modes. However, when connected via VGA I get: IMG_1724.jpg The light lines fli...

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