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What do we have here... A PAK68/3 and a PuSTE !

Posted: 06 Feb 2021 11:47
by HigashiJun
I have just received a PAK68/3 and its PuSTE buffer board.

Let's have a look at it:
PAK.jpeg
50 Mhz CPU and 50 Mhz FPU, cool... :D

PAK1.jpeg
Some very thin bodge wires on the back of the beast.

PUste.jpeg
Scratches on the PCB...

PUste1.jpeg
A very bad repair is visible on a trace. :x I will have to fix that...


Straightening the pins on the back of the PuSTE was a real pain in the a..e, but this tedious job is finally done.

Now they align quite well with PLCC socket pins, but I do not like this way of connecting as it is too clumsy.

I plan to connect the PuSTE to the Atari STE with a Winslow W9305, but the task is not straightforward.

Actually, pins of the Winslow do not align with PuSTE pins, and I have to make an adapter in order to connect everything.

(And I guess Exxos' new beta booster has the same kind of pins, so it will not be possible to use the Winslow directly on it either...).

Does anybody know which footprints I should use in EasyEDA to design this adapter ? I need the Winslow W9305 one and also one for the "Insert" pins of the PuSTE. (The adapter would be similar to Exxos' "BLITTER PLCC68 FUNKY SOCKET CONVERTER" PCB).

Cheers.

Re: What do we have here... A PAK68/3 and a PuSTE !

Posted: 06 Feb 2021 13:30
by DoG
These pins is designed to sit behind the pins in the plcc socket. exxos to I think.

So you have to design your own footprint if not anyone have something ready-to-go.

EDIT: The PAK board is the older board without the fixes with UC2, C43 and R48 on board. Great board.

Re: What do we have here... A PAK68/3 and a PuSTE !

Posted: 06 Feb 2021 13:47
by HigashiJun
DoG wrote: 06 Feb 2021 13:30 These pins is designed to sit behind the pins in the plcc socket. exxos to I think.

So you have to design your own footprint if not anyone have something ready-to-go.
Should exist somewhere...

Some Atari STE IDE interfaces were plugged the same way, and also Exxos' old plug-in boosters.

For the Winslow, Alan Hourihane's Monster STE and even Rodolphe Pineau's 68020 Booster had a W9305 on the PCB.

The problem is sometimes to get the exact name of the footprint.

Re: What do we have here... A PAK68/3 and a PuSTE !

Posted: 06 Feb 2021 13:54
by exxos
If your trying to fit headers on the outside of the plcc contacts.. Its not so simple as on the STE there are at least 3 brands of socket where the alignment is different.. Its one reason I abandond the plug in boosters..

Re: What do we have here... A PAK68/3 and a PuSTE !

Posted: 06 Feb 2021 14:06
by HigashiJun
exxos wrote: 06 Feb 2021 13:54 If your trying to fit headers on the outside of the plcc contacts.. Its not so simple as on the STE there are at least 3 brands of socket where the alignment is different.. Its one reason I abandond the plug in boosters..
Yes, that is the reason I would like to make an adapter.

A small PCB where you can insert the Winslow pins on one side and solder them and PuSTE pins on the other side.

According to picture of your new beta plug-in booster, it looks like it has the same kind of pins the PuSTE has,

I am looking for this kind of footprint.

Cheers.

Re: What do we have here... A PAK68/3 and a PuSTE !

Posted: 06 Feb 2021 14:10
by exxos
Couldn't you just solder the pak on top of the Winslow socket, even if you had to bend the pins a bit ?

Re: What do we have here... A PAK68/3 and a PuSTE !

Posted: 06 Feb 2021 14:13
by Steve
Are these basically just an upgraded cpu and fpu without any fast ram? Way before my time... :)

Re: What do we have here... A PAK68/3 and a PuSTE !

Posted: 06 Feb 2021 14:17
by exxos
Steve wrote: 06 Feb 2021 14:13 Are these basically just an upgraded cpu and fpu without any fast ram? Way before my time... :)
Yes.. But there was a fastram add on called Paula ?

Re: What do we have here... A PAK68/3 and a PuSTE !

Posted: 06 Feb 2021 14:43
by frank.lukas
Use the Google Translator -> http://www.wrsonline.de/atari_index.html

Re: What do we have here... A PAK68/3 and a PuSTE !

Posted: 06 Feb 2021 15:20
by DoG
FastRAM board for PAK is called FRAK.