PSU (power supplies)

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How to: recapping the Mega STe power supply

Last post by Peter_John48115 « Thu Apr 12, 2018 7:04 pm
Replies: 15
by Pacman » Mon Oct 16, 2017 11:41 pm
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I recently decided to replace all the electrolytic capacitors (recap) in my Mega STe power supply (Phihong PSM-5341) as a safety measure, considering...
15 Replies

2403 Views

Last post by Peter_John48115
Thu Apr 12, 2018 7:04 pm
NEW MSTE/TT & ST PSU ? (well not really)

Last post by troed « Thu Apr 12, 2018 5:00 pm
Replies: 1
by exxos » Thu Apr 12, 2018 2:41 pm

As many know I created alternative power supplies for the STF/E/Falcon. About once a week I get asked if I will design a new MSTE PSU. Basically the...

1 Replies

311 Views

Last post by troed
Thu Apr 12, 2018 5:00 pm
WHAT PSU CAPACITORS SHOULD I USE ?

Last post by exxos « Fri Aug 18, 2017 8:26 pm

by exxos » Fri Aug 18, 2017 8:26 pm

This is a question I get asked almost daily...

Before I explain some things, please considering buy the capacitors kits from my webstore if I sell...

0 Replies

584 Views

Last post by exxos
Fri Aug 18, 2017 8:26 pm
ATARI ST PSU CAPACITOR & UPGRADE INFORMATION

Last post by exxos « Fri Aug 18, 2017 8:21 pm

by exxos » Fri Aug 18, 2017 8:21 pm

Work I started in 2012 and spanning now 5 years later. I have been researching and offering replacement kits and advise to people with Atari PSU's....

0 Replies

867 Views

Last post by exxos
Fri Aug 18, 2017 8:21 pm
Future PSU designs

Last post by exxos « Mon Oct 15, 2018 4:13 pm
Replies: 98
by exxos » Sun Sep 24, 2017 2:00 am
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As many know I designed my own PSU..

Though soldering the regulators is no fun :roll:

I have been looking around and found a soic8 regulator...
98 Replies

7821 Views

Last post by exxos
Mon Oct 15, 2018 4:13 pm
2018 red edition exxos PSU specs

Last post by exxos « Fri Oct 05, 2018 5:08 pm

by exxos » Fri Oct 05, 2018 5:08 pm

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The latest PSU from exxos. The red edition . Featuring highly efficient high power modern switch mode chips from one of the leading...

0 Replies

126 Views

Last post by exxos
Fri Oct 05, 2018 5:08 pm
Discharging capacitors, PSU-testing with dummy loads

Last post by stween « Wed Oct 03, 2018 10:43 pm
Replies: 33
by Pacman » Tue Aug 29, 2017 12:05 pm
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I have two questions concerning before and after recapping an Atari PSU:

1) what is the safe and proper way to discharge a (high voltage) capacitor...
33 Replies

3274 Views

Last post by stween
Wed Oct 03, 2018 10:43 pm
Good Quality Pico PSU

Last post by exxos « Sun Sep 30, 2018 5:26 pm
Replies: 3
by GiancarloCP » Sat Sep 29, 2018 2:53 am

Hello,
I am a normal computer user, after looking reviews to Good Quality Pico PSU I found a one technical review here:

Just for curiosity, I would...

3 Replies

122 Views

Last post by exxos
Sun Sep 30, 2018 5:26 pm
SR98 trimmer pot

Last post by sandord « Fri Sep 28, 2018 5:39 pm
Replies: 2
by sandord » Sat Sep 22, 2018 10:05 am

I've recapped my friend's SR98.

Now, the instructions say:

The trimmer pot may need to be adjusted back to 5.00volts on the 5V rail.

Since I...

2 Replies

101 Views

Last post by sandord
Fri Sep 28, 2018 5:39 pm
Mega ST2 psu failure

Last post by atari030 « Tue Sep 25, 2018 12:12 pm
Replies: 8
by Erikswe » Sun Sep 23, 2018 12:35 pm

I got myself a Mega St2 and it doesn't power up at all, nothing at all happens. I thought I would start with the PSU. It has a Mitsumi sr188 Psu....

8 Replies

170 Views

Last post by atari030
Tue Sep 25, 2018 12:12 pm
ASP34-2 REV1 recapping how-to

Last post by exxos « Mon Sep 24, 2018 10:54 am
Replies: 3
by sandord » Mon Aug 13, 2018 10:27 pm

I recapped my ASP34-2 REV 1 PSU the other day, replacing 7 capacitors and the rectifier.

I thought I'd do a quick report to share my experience with...

3 Replies

149 Views

Last post by exxos
Mon Sep 24, 2018 10:54 am
Recapping Falcon PSU - My rectifier is different

Last post by derkom « Wed Sep 19, 2018 5:24 pm
Replies: 8
by derkom » Wed Sep 19, 2018 10:39 am

I'm in the process of recapping a Falcon PSU with exxos' kit (hoping to tame a ~300 mV ripple on the +12V rail) and after replacing all the caps,...

8 Replies

152 Views

Last post by derkom
Wed Sep 19, 2018 5:24 pm
PSU failure images

Last post by tzok « Wed Sep 12, 2018 10:09 pm
Replies: 2
by exxos » Wed Nov 22, 2017 8:28 am

Submit your Atari PSU blow up images here :)

cap-blow.jpg
Image by John Leonard.

2 Replies

547 Views

Last post by tzok
Wed Sep 12, 2018 10:09 pm
Replacement PSU for STf/STe

Last post by tzok « Wed Sep 12, 2018 10:03 pm

by tzok » Wed Sep 12, 2018 10:03 pm

I've managed to fit a MeanWell RT-65B PSU into the STf case in place of original PSU. It works fine on my noisy STf, even better (less noise) than my...

0 Replies

74 Views

Last post by tzok
Wed Sep 12, 2018 10:03 pm
Video problem on STE

Last post by exxos « Fri Sep 07, 2018 1:48 pm
Replies: 8
by Strider » Mon Mar 12, 2018 9:32 pm

Hello,

Yesterday I've recapped the PSUs of my 2 STEs.
I attached a photo, the PSUs have been controlled before starting the STEs.

However I have...

8 Replies

811 Views

Last post by exxos
Fri Sep 07, 2018 1:48 pm
STFM STE PSU recommended capacitors

Last post by exxos « Thu Aug 30, 2018 3:14 pm
Replies: 1
by zack4mac » Thu Aug 30, 2018 2:28 pm

Hello all I am new to Exxos forum and electronics but I have a couple of questions.

I really need some advice, my DVE DSP-508A psu and have read the...

1 Replies

102 Views

Last post by exxos
Thu Aug 30, 2018 3:14 pm
Dead Exxos PSU out of the blue

Last post by exxos « Tue Aug 14, 2018 10:08 pm
Replies: 31
by mikro » Wed Jun 13, 2018 8:57 pm
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Hi guys,

I hope this is the right place to post. I purchased one 230V PSU from Chris on 30/08/2016 but instead of celebrating our two-year...
31 Replies

1780 Views

Last post by exxos
Tue Aug 14, 2018 10:08 pm
Exxos Replacenent PSU’s for STe

Last post by exxos « Sun Jul 22, 2018 9:15 pm
Replies: 1
by Axnfell » Sun Jul 22, 2018 7:50 pm

Hi Exxos,

I purchased one of your great new toriodail PSU for my old ST, but have noticed that now I want another that they are out of stock, is it...

1 Replies

132 Views

Last post by exxos
Sun Jul 22, 2018 9:15 pm
Which recap kit for PhiHong 2512-2???

Last post by Shugs81 « Wed Jul 18, 2018 10:13 pm
Replies: 5
by Shugs81 » Wed Jul 18, 2018 6:03 pm

Hi peeps...

Looking to place an order tonight and was wondering which recap I need from the store??

Thanks peeps!!

5 Replies

245 Views

Last post by Shugs81
Wed Jul 18, 2018 10:13 pm
Exxos PSU + CT2B Falcon

Last post by exxos « Mon Jul 16, 2018 10:39 am
Replies: 17
by mikro » Thu Jul 12, 2018 10:10 pm
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I guess this will be the first Exxos PSU in such Falcon. I must say I'm really impressed by its thermal characteristics -- the CT2 is draining power...
17 Replies

675 Views

Last post by exxos
Mon Jul 16, 2018 10:39 am
How to recognise/transform a 110V Falcon PSU?

Last post by exxos « Tue Jul 10, 2018 1:33 pm
Replies: 8
by mikro » Sun Jun 24, 2018 11:54 am

I have two Falcon PSUs which have gone bad. One just making tsk-tsk-tsk-tsk sounds (and power LED blinking) and one which... ehm, had sort of...

8 Replies

446 Views

Last post by exxos
Tue Jul 10, 2018 1:33 pm
Falcon PSU making 'tsk-tsk-tsk' sound

Last post by exxos « Wed Jul 04, 2018 9:01 pm
Replies: 13
by mikro » Sat Jun 30, 2018 9:41 pm
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As mentioned in this post one of my PSUs is making very quiet 'tsk-tsk-tsk-tsk' sound. I thought recapping would do some good and oh boy, I was...
13 Replies

668 Views

Last post by exxos
Wed Jul 04, 2018 9:01 pm
Mega PSU

Last post by atari030 « Wed Jun 27, 2018 10:40 pm
Replies: 2
by atari030 » Wed Jun 27, 2018 10:46 am

I was just playing with my stuffed Mega4 and have something weird going on. I bought another PSU, I needed one anyway. It is doing the same as my...

2 Replies

423 Views

Last post by atari030
Wed Jun 27, 2018 10:40 pm
TT/Mega STE power supply headaches

Last post by damanloox « Wed May 02, 2018 8:43 pm
Replies: 44
by damanloox » Mon Apr 16, 2018 9:05 pm
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I've been trying to find the issue that I have with my TT (or PSU specifically)... Long story short (exxos knows the details as I have been bothering...
44 Replies

2016 Views

Last post by damanloox
Wed May 02, 2018 8:43 pm
MSTE PSU RE-CAP FAIL

Last post by exxos « Mon Apr 16, 2018 7:20 pm
Replies: 3
by exxos » Fri Oct 20, 2017 1:57 pm

I had this power supply sent in for repair as after it was recapped , it failed to function correctly.

Upon arrival I saw that the capacitor legs...

3 Replies

650 Views

Last post by exxos
Mon Apr 16, 2018 7:20 pm

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