[vcf-midatlantic] May Repair workshop
Andrew Diller
dillera at gmail.com
Tue May 18 13:53:56 UTC 2021
VCF needs 64 pin sockets for the Amigas which need fixing (about 5 sockets).
-andy
> On May 18, 2021, at 9:11 AM, Jeff Salzman via vcf-midatlantic <vcf-midatlantic at lists.vcfed.org> wrote:
>
> If you are referring to IC DIP sockets, I will interject my
> opinion/recommendation on sockets to have on hand.
>
> 8, 14, 16-pin sockets are very common, as they are used for logic, some
> RAM, and timer ICs.
>
> 18-pin sockets are used for a few specialty ICs in vintage systems,
> primarily for GAL/PAL chips.
>
> 24-pin sockets are used for some special function ICs
>
> 28-pin sockets are useful for many EPROM chips and Z80 interface chips.
>
> 40-pin sockets for many 8-bit CPUs
>
> 64-pin sockets for many 16-bit CPUs, like the Motorola 68000.
>
> For best results, they should be "double-wipe" (or dual-wipe) DIP sockets.
> There are "single-wipe" sockets, but they are not as reliable.
>
> If I had to guess what would be a good quantity assortment, in an armchair
> expert opinion sort of way, I would say that out of a quantity of 100
> pieces, the following breakdown might be useful:
>
> 15x 8-pin
> 20x 14-pin
> 25x 16-pin
> 5x 18-pin
> 10x 24-pin
> 10x 28-pin
> 10x 40-pin
> 5x 64-pin
>
> That ratio is certainly subject to other people's informed opinion. I am
> only breaking down the ratio based on what I've dealt with over the years.
>
> Jeff Salzman
>
> On Tue, May 18, 2021 at 8:48 AM Martin Flynn via vcf-midatlantic <
> vcf-midatlantic at lists.vcfed.org> wrote:
>
>> Dean,
>> I’m ordering sockets for CDL stock / is there a specific type that is
>> preferred ?
>>
>> Martin
>>
>>
>>
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