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Extending a AAA-size battery with a solid block of copper?

Last post by rubber_jonnie « Mon May 20, 2019 3:35 pm
Replies: 7
by Atarian Computing » Mon May 20, 2019 10:18 am

So I'm also a fanatic MiniDisc user and one of the issues we face are obsolete Li-Ion batteries. NOS-batteries are already dead as they are over...

7 Replies

94 Views

Last post by rubber_jonnie
Mon May 20, 2019 3:35 pm
Keyboard Membrane Repair

Last post by PaulJ_2.0 « Sat May 18, 2019 12:05 pm

by PaulJ_2.0 » Sat May 18, 2019 12:05 pm

I thought I would share this as it worked.

My Amiga 600 is in great original shape, no yellowing, the drive works faultlessly and it was until...

0 Replies

33 Views

Last post by PaulJ_2.0
Sat May 18, 2019 12:05 pm
Advice on fixing an Amiga 500+

Last post by Maximilian « Thu May 16, 2019 4:51 pm
Replies: 4
by Steve » Wed May 15, 2019 9:49 am

Hi guys,

Symptoms: red then green screen
Solved red screen by replacing the ROM.
New symptom: just pure green screen.

I'm new to Amigas in general...

4 Replies

124 Views

Last post by Maximilian
Thu May 16, 2019 4:51 pm
Are Bypass Capacitors REALLY needed?

Last post by terriblefire « Tue May 14, 2019 8:48 am
Replies: 6
by exxos » Thu May 24, 2018 12:01 pm

Dave Jones doing another interesting video.

It touches on PCB layout issues vs noise, that is what I spend a lot of time fighting on the ST!

6 Replies

931 Views

Last post by terriblefire
Tue May 14, 2019 8:48 am
EEVblog #1200 - BUSTED! - Energizer & Duracell NiMH

Last post by DrF « Thu Apr 25, 2019 9:18 am
Replies: 3
by exxos » Fri Apr 12, 2019 2:19 pm

3 Replies

307 Views

Last post by DrF
Thu Apr 25, 2019 9:18 am
Cheap Reflow Oven

Last post by Icky « Sun Apr 21, 2019 8:11 am
Replies: 6
by Icky » Sat Apr 20, 2019 6:48 pm

With all the boards I am working on there are a lot of SMT components and using the hot air rework station is good for some small jobs but for a...

6 Replies

195 Views

Last post by Icky
Sun Apr 21, 2019 8:11 am
New a1200, how are the caps looking?

Last post by Steve « Wed Apr 17, 2019 3:34 pm
Replies: 6
by Steve » Mon Apr 08, 2019 11:05 pm

Hey guys,

As you know I'm an Atari man - but I recently snagged an a1200 for a bargain. Very much looking forward to learning about this machine....

6 Replies

298 Views

Last post by Steve
Wed Apr 17, 2019 3:34 pm
Tip restorer testing

Last post by exxos « Thu Apr 04, 2019 8:35 pm
Replies: 17
by exxos » Thu Dec 06, 2018 5:48 pm
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I got one of these to try...

IMG_3671.JPG

Before...

IMG_3672.JPG

Oddly it smells like fruitcake as its just come out of the oven or...
17 Replies

1074 Views

Last post by exxos
Thu Apr 04, 2019 8:35 pm
Logic Analyser on the Cheap

Last post by terriblefire « Thu Apr 04, 2019 12:42 pm
Replies: 21
by Icky » Sat Nov 10, 2018 10:47 pm
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I had noticed a few people on in this community using Logic Analysers (LA) to trace digital signals.

Not wanting to spend a lot of money on one such...
21 Replies

1540 Views

Last post by terriblefire
Thu Apr 04, 2019 12:42 pm
DIY PCB Etching With Water

Last post by terriblefire « Sun Mar 31, 2019 9:59 pm
Replies: 1
by exxos » Sun Mar 31, 2019 9:34 pm

Experimenting with etching your own PCB's by concentrating existing ferric chloride levels in tap water. How well does it work?

1 Replies

133 Views

Last post by terriblefire
Sun Mar 31, 2019 9:59 pm
The Evil that is SMD soldering!

Last post by exxos « Tue Mar 19, 2019 3:22 pm
Replies: 3
by Bikerbob » Tue Mar 19, 2019 2:03 pm

So, I dont feel like buying components just to destroy them learning how to do something I no longer have the steady hand or focus for.

BUT there is...

3 Replies

276 Views

Last post by exxos
Tue Mar 19, 2019 3:22 pm
Monitor recapping and low ESR

Last post by chiark « Fri Feb 22, 2019 4:22 pm
Replies: 54
by sandord » Mon Oct 08, 2018 1:52 pm
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I'm planning to recap two Commodore 1084S-D2 and a 1084S-P1 monitors.

I've assembled part lists for both (they are quite different in internal...
54 Replies

4440 Views

Last post by chiark
Fri Feb 22, 2019 4:22 pm
2 Layer vs 4 Layer PCB EMC TESTED (EEV Video)

Last post by DrF « Sat Feb 09, 2019 10:04 am

by DrF » Sat Feb 09, 2019 10:04 am

Topic pops up now and again round here, here's a video with some info on it, I thought was useful anyhow :D

Exxos always ranting about interference...

0 Replies

446 Views

Last post by DrF
Sat Feb 09, 2019 10:04 am
Resistor exploded in my monitor

Last post by exxos « Sun Jan 27, 2019 5:09 pm
Replies: 34
by sandord » Sat Dec 22, 2018 9:24 pm
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Today I soldered a new power switch in my Commodore 1084S-D2 monitor.

When I turned it on, there was a loud bang, rather large flash and a small...
34 Replies

2947 Views

Last post by exxos
Sun Jan 27, 2019 5:09 pm
Undeletable objects in Eagle ?!

Last post by exxos « Fri Jan 25, 2019 5:01 pm
Replies: 9
by exxos » Thu Jan 24, 2019 8:51 pm

At some point I must have added in some squares to stop the autofill filling areas I didn't want it to go.. only.. they seem to be on the top and...

9 Replies

467 Views

Last post by exxos
Fri Jan 25, 2019 5:01 pm
When pins look shorted but are not

Last post by TheNameOfTheGame « Fri Jan 25, 2019 3:16 pm
Replies: 2
by exxos » Fri Jan 25, 2019 2:01 pm

So been trying to remove a shorted between 2 pins, only to realise they are actually linked on the PCB! :roll:

I am mentioning it here as its...

2 Replies

206 Views

Last post by TheNameOfTheGame
Fri Jan 25, 2019 3:16 pm
Eagle libs - why you can't trust them

Last post by rpineau « Tue Jan 08, 2019 9:36 pm
Replies: 8
by exxos » Tue Jan 08, 2019 5:48 pm

TQFP64 package.. Pads are not aligned correctly to device.. Just look at the overhang on the IC to the print out of the bads on the might hand side....

8 Replies

621 Views

Last post by rpineau
Tue Jan 08, 2019 9:36 pm
KiCAD help me..

Last post by PaulJ « Mon Jan 07, 2019 6:45 pm
Replies: 19
by PaulJ » Tue Dec 18, 2018 4:09 pm
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For all you kicad experts out there. I'm attempting to layout a simple board that makes a board to convert a 28 pin prom foot print to a 32 pin PLCC....
19 Replies

1126 Views

Last post by PaulJ
Mon Jan 07, 2019 6:45 pm
Strange part connected to flyback of Atari SC1224

Last post by PaulJ « Mon Jan 07, 2019 2:12 pm
Replies: 12
by sandord » Sun Jan 06, 2019 6:37 pm
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I've just opened up my beloved Atari SC1224 monitor to make a revision parts list. I'm going to replace all electroylic caps, the HOT, VOT, the...
12 Replies

599 Views

Last post by PaulJ
Mon Jan 07, 2019 2:12 pm
Soldering Irons

Last post by rubber_jonnie « Fri Jan 04, 2019 9:01 am
Replies: 26
by exxos » Thu Nov 02, 2017 8:32 pm
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Another common question I get is what soldering irons do I use...

SOLDERING IRON I USE.

2062627-40.jpg

I used this one because it is...
26 Replies

3821 Views

Last post by rubber_jonnie
Fri Jan 04, 2019 9:01 am
EAGLE CAD LIB EDITOR TUTORIAL PART 3

Last post by PaulJ « Fri Dec 28, 2018 5:24 pm
Replies: 8
by exxos » Thu Dec 27, 2018 4:42 pm

This guide will (try to) explain how to create a simple part for a library. In this example I will create a PLCC44 ROM..

I know for a fact there is...

8 Replies

373 Views

Last post by PaulJ
Fri Dec 28, 2018 5:24 pm
EAGLE CAD SCHEMATIC EDITOR TUTORIAL PART 1

Last post by exxos « Thu Dec 27, 2018 3:39 pm
Replies: 20
by exxos » Tue Dec 18, 2018 10:22 pm
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I know people are struggling with getting started with Eagle. I don't think later versions really help with the confusion. So here is version 5.6 to...
20 Replies

1680 Views

Last post by exxos
Thu Dec 27, 2018 3:39 pm
EAGLE CAD PCB EDITOR TUTORIAL PART 2

Last post by PaulJ « Fri Dec 21, 2018 11:42 pm
Replies: 7
by exxos » Thu Dec 20, 2018 4:11 pm

In part 1 we looked how to create a schematic. So next we need to create the PCB file.

We go into the FILE menu and click on SWITCH TO BOARD...

7 Replies

717 Views

Last post by PaulJ
Fri Dec 21, 2018 11:42 pm
EEVblog #1158 - How To Create PCB Mod Boards

Last post by exxos « Tue Dec 18, 2018 2:49 pm
Replies: 4
by exxos » Mon Dec 17, 2018 11:04 pm

Think we nailed that already :lol:

4 Replies

516 Views

Last post by exxos
Tue Dec 18, 2018 2:49 pm
Microscopic chip analysis

Last post by ijor « Tue Dec 11, 2018 4:31 pm
Replies: 8
by sandord » Tue Dec 11, 2018 12:59 am

I saw this tweet today:

The GDG is the Sharp MZ-800's equivalent of the ST's glue/mmu/shifter (don't know exactly the mixture)

I wondered if this...

8 Replies

652 Views

Last post by ijor
Tue Dec 11, 2018 4:31 pm

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