Re: PET 2001 320081 manufacturing fault / layout failure ?

From: Christian Dirks <Toast_r_at_IdeaLine.info>
Date: Mon, 23 Dec 2019 07:46:56 +0100
Message-ID: <bce1fe27-b375-1636-ab27-0f74cc8d9c50_at_IdeaLine.info>
I have seen the same fix on at least one PET mainboard, but I don't
remember for sure which board type it was.
Most likely it was a board with 6540/6550.

Christian

Am 20.12.2019 um 20:46 schrieb William Levak:
> 
> The earliest PETs had the active contacts on the bottom side.
> The tape drive had compatible contacts.
> On the machine that had this, I drilled small holes throught the
> contacts and soldered small wires top and bottom.
> 
> 
> 
> On Thu, 19 Dec 2019, smf wrote:
> 
>> On 19/12/2019 18:12, vossi wrote:
>>> I take a look at the tape connectors and cannot believe what I see:
>>> The contacts misses the via's !!!
>>> So the signals are only on the backside of the pcb!
>>> But all tape drives from Commodore have the contacts in the connector
>>> only
>>> on the upside!!!
>>
>> AFAIK they sold different tape drives for those.
>>
>>
>>
>>
> 
> wlevak_at_sdf.lonestar.org
> SDF Public Access UNIX System - http://sdf.lonestar.org
> 


-- 
Christian Dirks
Toast_r_at_Idealine.info
Vorster Str. 66
47918 Tönsivorst

2. Stellv. Vorsitzender
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http://www.classic-computing.de/





Received on 2020-05-29 23:58:23

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