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 Post subject: PCB ID 26
PostPosted: Mon Sep 07, 2020 3:06 pm 

Joined: Sat Aug 15, 2020 5:02 pm
Posts: 110
Please help ID these PCBs. Thanks!


Attachments:
File comment: Front
PCB26 Front.jpg
PCB26 Front.jpg [ 3.94 MiB | Viewed 2323 times ]
File comment: Back
PCB26 Back.jpg
PCB26 Back.jpg [ 1.26 MiB | Viewed 2323 times ]
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 Post subject: Re: PCB ID 26
PostPosted: Thu Sep 10, 2020 1:28 am 

Joined: Fri Dec 20, 2019 3:16 am
Posts: 177
Location: Ohio
1, low telco, might be peripheral because of size and empty area population.
2, small/metal color MoBo
3, low grade
4, mid grade
5, floppy drive? If so, peripheral
6, mid grade
7, low grade, remove white tape, if chip underneath, mid grade
8, mid grade


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 Post subject: Re: PCB ID 26
PostPosted: Thu Sep 10, 2020 4:53 pm 
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Joined: Tue Feb 03, 2015 6:57 pm
Posts: 9761
Location: Low DOS
1 peripheral
2 small socket
3 midgrade
4 gold pin connector
5 gold pin connector (not floppy)
6 midgrade
7 low
8 midgrade, could get upgraded if pins are gold.

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 Post subject: Re: PCB ID 26
PostPosted: Thu Sep 10, 2020 6:07 pm 

Joined: Fri Dec 20, 2019 3:16 am
Posts: 177
Location: Ohio
#5 isn't a floppy?

I'm pretty confident it is, let me get your 2 cents Lost


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 Post subject: Re: PCB ID 26
PostPosted: Thu Sep 10, 2020 7:17 pm 
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Joined: Tue Feb 03, 2015 6:57 pm
Posts: 9761
Location: Low DOS
Way to small. It’s some sort of serial board though.
I can’t match it exactly. From part number either. I have 18 different items in the DB with that number. 15 with photos. None look like that. The other 3 are a speaker part. With only 4 pins and three power pins.

Best guess is a cable interconnect. Of some sort.

Regardless floppy boards get peripheral for two reasons. A well know hard to reduce controller IC type. Even the great Woz couldn’t skimp it much.
And standardised pins. This has neither.

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 Post subject: Re: PCB ID 26
PostPosted: Thu Sep 10, 2020 7:25 pm 
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Joined: Tue Feb 03, 2015 6:57 pm
Posts: 9761
Location: Low DOS
Only 2 drive boards I’ve ever seen with that few pins was the twiggy. Apple’s FileWare.
And the original Amstrad 3” controller.
Both were epic failures in use. Neither would make peripheral rate and both are extremely rare expensive parts that would be better on ebay in ANY condition.
It’s not a twiggy board. I have one. And every AS10 board I’ve seen has the ceramic controller on the side we’re looking at here. Though it /IS/ close to that board’s layout.

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 Post subject: Re: PCB ID 26
PostPosted: Thu Sep 10, 2020 9:22 pm 

Joined: Fri Dec 20, 2019 3:16 am
Posts: 177
Location: Ohio
I thought for sure it was a floppy board.
I recognized the blue clock controller and the 4 pin power plug with the ide pin plug. I can see the 2 ribbon connectors for the motor and reader too.

I'll have to post some floppy boards I have because they're small like this and kinda of bare n empty population.


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 Post subject: Re: PCB ID 26
PostPosted: Thu Sep 10, 2020 9:27 pm 

Joined: Fri Dec 20, 2019 3:16 am
Posts: 177
Location: Ohio
One day I want to sit down and have a conversation with you Lost. Pick your knowledge and enjoy some computing nostalgia. You have an immense range of everything in this field I want to know too, haha.


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 Post subject: Re: PCB ID 26
PostPosted: Fri Sep 11, 2020 12:27 am 

Joined: Sat Aug 15, 2020 5:02 pm
Posts: 110
I posted another picture of 7 without the tape and some more pictures of board 5 if it helps solve your mystery.


Attachments:
File comment: Pins
PCBD3.jpg
PCBD3.jpg [ 769.38 KiB | Viewed 2262 times ]
File comment: Back
PCBD Back.jpg
PCBD Back.jpg [ 1.21 MiB | Viewed 2262 times ]
File comment: Front
PCBD Front.jpg
PCBD Front.jpg [ 1.67 MiB | Viewed 2262 times ]
File comment: Another picture of 7
PCBC.jpg
PCBC.jpg [ 1.79 MiB | Viewed 2262 times ]
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 Post subject: Re: PCB ID 26
PostPosted: Sat Sep 12, 2020 11:16 pm 

Joined: Sat Aug 15, 2020 5:02 pm
Posts: 110
Let me know if I should post more pictures of these. Thanks!


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