Jump to content
omf

Thoughts about this possible alternative internal colecovision PSU

Recommended Posts

so i have been thinking about this and was looking as one does, and i came across this on ebay

 

http://www.ebay.co.uk/itm/AC-DC-5V-1A-1000mA-Power-Supply-Buck-Converter-Step-Down-Module-Small-Size-/191879043673?hash=item2cace1da59:g:tpUAAOSweW5VeVqx

 

I did try and do something similar with a hefty heatsink and a load of voltage regulators and capacitors once but I got some image distortion during my tests so abandoned that idea, what I want to know if anyone can help is would this deliver power clean enough to run a Colecovision without any image distortion

 

it maybe worth getting one just to try at that price but wanted to see what others thought first

Share this post


Link to post
Share on other sites

i posted this in the hardware forum but it was moved here to be more on topic to see if anyone could help.

 

so what do you guys think??

Share this post


Link to post
Share on other sites

i posted this in the hardware forum but it was moved here to be more on topic to see if anyone could help.

 

so what do you guys think??

i use cfm40t it can be fit in the coleco and give you all the power you need +12 +5 -5 so you still can connect the roller controller behind the coleco

Share this post


Link to post
Share on other sites

It isn't an internal mod, but something I have been working on. It runs on a stock cv with no mods and just uses an off the shelf 12V power supply.

 

post-45248-0-09657000-1493867964_thumb.jpg

Share this post


Link to post
Share on other sites

i use cfm40t it can be fit in the coleco and give you all the power you need +12 +5 -5 so you still can connect the roller controller behind the coleco

thanks for the part number, it gives me a place to start for a working power supply

i looked on ebay at http://www.ebay.co.uk/itm/Very-Handy-3-voltage-Poject-Power-Supply-Mains-input-with-12v-5v-3-3v-Output-/322479449518?hash=item4b1545e5ae:g:casAAOSwknJXyuj7 but this seems to be a variant of cfm40t, this is CFM40T-07 which doesnt have the -5 volts which isnt a major issue i suppose, it is the only one that appear after putting in cfm40t.

 

it looks a bit big for what is needed

Share this post


Link to post
Share on other sites

thanks for the part number, it gives me a place to start for a working power supply

i looked on ebay at http://www.ebay.co.uk/itm/Very-Handy-3-voltage-Poject-Power-Supply-Mains-input-with-12v-5v-3-3v-Output-/322479449518?hash=item4b1545e5ae:g:casAAOSwknJXyuj7 but this seems to be a variant of cfm40t, this is CFM40T-07 which doesnt have the -5 volts which isnt a major issue i suppose, it is the only one that appear after putting in cfm40t.

 

it looks a bit big for what is needed

the -5v is for the vram if you use a f18a or had the vram mod you don need it... you can find the cfm40t here http://ca.mouser.com/Search/m_ProductDetail.aspx?Cincon/CFM40T-01/&qs=a9HUcNGsM2BO67El0yNmhQ==

Share this post


Link to post
Share on other sites

ok i picked up one of these power supplies i mentioned in post one during a much larger ebay parts order.

 

it works a treat.

 

it outputs 5v only so it only appears to work if you have a F18a installed

 

does anyone know the power requirements of the SGM, will that work on 5V only?

Edited by omf

Share this post


Link to post
Share on other sites

 

Here is my album of how I modded my CV. Might be something useful for you in there.

 

 

Do you have a part # on the PSU?

Is it putting out 12v, 5v, -5v?

120v input?

Thanks

Share this post


Link to post
Share on other sites

The power supply I used is a Meanwell RS-15. I installed the F18a board so I don't require -5V anymore. If you don't put an F18 board in you could get one of the Meanwell powersupplies that delivers -5V, 5V and 12V. It takes anything from 100 to 240V input. I plan on making something like it for my Intellivision but the voltages on that one are a bit more difficult to obtain.

Share this post


Link to post
Share on other sites

The power supply I used is a Meanwell RS-15. I installed the F18a board so I don't require -5V anymore. If you don't put an F18 board in you could get one of the Meanwell powersupplies that delivers -5V, 5V and 12V. It takes anything from 100 to 240V input. I plan on making something like it for my Intellivision but the voltages on that one are a bit more difficult to obtain.

I figured it was a two out.

I've got a mean well three out, but was hoping someone found a small enclosed three out.

Will be trying out this external one in the future:

https://www.jameco.com/z/GP25A13A-R1B-Mean-Well-28-5-Watt-5V-12V-5V-Triple-Output-Industrial-Table-Top-Power-Supply_2254151.html

Just uses a din 5 connector.

 

Looks like an AA member has had success with a ti computer.

https://atariage.com/forums/topic/252838-ti-replacement-power-supply/

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...