Rocksolid Light - alt.sys.pdp11 - Looking at a PDP-11 Circuit Board

Looking at a PDP-11 Circuit Board

<339cbff7-7841-45c3-9d3b-3e5455e3b3d9n@googlegroups.com>

https://news.novabbs.org/computers/article-flat.php?id=873&group=alt.sys.pdp11#873

X-Received: by 2002:a05:6214:2a83:b0:478:5e6a:ebe with SMTP id jr3-20020a0562142a8300b004785e6a0ebemr2008957qvb.130.1660823826960;
Thu, 18 Aug 2022 04:57:06 -0700 (PDT)
X-Received: by 2002:aca:a8c5:0:b0:343:8774:d82 with SMTP id
r188-20020acaa8c5000000b0034387740d82mr3593233oie.249.1660823826572; Thu, 18
Aug 2022 04:57:06 -0700 (PDT)
Path: i2pn2.org!i2pn.org!usenet.blueworldhosting.com!feed1.usenet.blueworldhosting.com!peer03.iad!feed-me.highwinds-media.com!news.highwinds-media.com!news-out.google.com!nntp.google.com!postnews.google.com!google-groups.googlegroups.com!not-for-mail
Newsgroups: alt.sys.pdp11
Date: Thu, 18 Aug 2022 04:57:06 -0700 (PDT)
Injection-Info: google-groups.googlegroups.com; posting-host=174.63.217.39; posting-account=Sdqv_QoAAAB8AsTgmmwDwTyzclxdZp-U
NNTP-Posting-Host: 174.63.217.39
User-Agent: G2/1.0
MIME-Version: 1.0
Message-ID: <339cbff7-7841-45c3-9d3b-3e5455e3b3d9n@googlegroups.com>
Subject: Looking at a PDP-11 Circuit Board
From: cliff52@gmail.com (cli...@gmail.com)
Injection-Date: Thu, 18 Aug 2022 11:57:06 +0000
Content-Type: text/plain; charset="UTF-8"
X-Received-Bytes: 1138

by: cli...@gmail.com - Thu, 18 Aug 2022 11:57 UTC

Re: Looking at a PDP-11 Circuit Board

<tdm3kt$1fk$2@news.misty.com>

copy mid

https://news.novabbs.org/computers/article-flat.php?id=874&group=alt.sys.pdp11#874

copy link Newsgroups: alt.sys.pdp11

Path: i2pn2.org!i2pn.org!weretis.net!feeder6.news.weretis.net!news.misty.com!.POSTED.h77-53-236-14.cust.a3fiber.se!not-for-mail
From: bqt@softjar.se (Johnny Billquist)
Newsgroups: alt.sys.pdp11
Subject: Re: Looking at a PDP-11 Circuit Board
Date: Thu, 18 Aug 2022 21:24:13 +0200
Organization: MGT Consulting
Message-ID: <tdm3kt$1fk$2@news.misty.com>
References: <339cbff7-7841-45c3-9d3b-3e5455e3b3d9n@googlegroups.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Injection-Date: Thu, 18 Aug 2022 19:24:13 -0000 (UTC)
Injection-Info: news.misty.com; posting-host="h77-53-236-14.cust.a3fiber.se:77.53.236.14";
logging-data="1524"; mail-complaints-to="abuse@misty.com"
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:91.0)
Gecko/20100101 Thunderbird/91.12.0
Content-Language: en-US
In-Reply-To: <339cbff7-7841-45c3-9d3b-3e5455e3b3d9n@googlegroups.com>

by: Johnny Billquist - Thu, 18 Aug 2022 19:24 UTC

On 2022-08-18 13:57, cli...@gmail.com wrote:
> Looking at third-party PDP-11 circuit boards for sale on that auction site.
> Is there a way to tell just from pictures if the board is QBUS or UNIBUS?

It's tricky. I usually search for some identification printed on the
screen layer, or solder layer, that gives me some hints on names to
lookup which could tell what kind of systems used the board.

Just trying to look at traces or components is hard.

Johnny

Re: Looking at a PDP-11 Circuit Board

<115f5557-c7aa-4ad1-a99d-bef6ac0d5548n@googlegroups.com>

copy mid

https://news.novabbs.org/computers/article-flat.php?id=875&group=alt.sys.pdp11#875

copy link Newsgroups: alt.sys.pdp11

X-Received: by 2002:a05:622a:c7:b0:343:2e72:8416 with SMTP id p7-20020a05622a00c700b003432e728416mr5846013qtw.92.1660903258021;
Fri, 19 Aug 2022 03:00:58 -0700 (PDT)
X-Received: by 2002:a9d:5882:0:b0:61c:86db:9949 with SMTP id
x2-20020a9d5882000000b0061c86db9949mr2536997otg.108.1660903257787; Fri, 19
Aug 2022 03:00:57 -0700 (PDT)
Path: i2pn2.org!i2pn.org!usenet.blueworldhosting.com!feed1.usenet.blueworldhosting.com!peer03.iad!feed-me.highwinds-media.com!news.highwinds-media.com!news-out.google.com!nntp.google.com!postnews.google.com!google-groups.googlegroups.com!not-for-mail
Newsgroups: alt.sys.pdp11
Date: Fri, 19 Aug 2022 03:00:57 -0700 (PDT)
In-Reply-To: <339cbff7-7841-45c3-9d3b-3e5455e3b3d9n@googlegroups.com>
Injection-Info: google-groups.googlegroups.com; posting-host=2a02:1210:5804:b400:347a:4076:20c5:7ebc;
posting-account=xk1ivQoAAACYhVHe0AtVzlm252SdQzfx
NNTP-Posting-Host: 2a02:1210:5804:b400:347a:4076:20c5:7ebc
References: <339cbff7-7841-45c3-9d3b-3e5455e3b3d9n@googlegroups.com>
User-Agent: G2/1.0
MIME-Version: 1.0
Message-ID: <115f5557-c7aa-4ad1-a99d-bef6ac0d5548n@googlegroups.com>
Subject: Re: Looking at a PDP-11 Circuit Board
From: peter.ljungberg.sui@gmail.com (P.Lj)
Injection-Date: Fri, 19 Aug 2022 10:00:58 +0000
Content-Type: text/plain; charset="UTF-8"
X-Received-Bytes: 1462

by: P.Lj - Fri, 19 Aug 2022 10:00 UTC

On Thursday, August 18, 2022 at 1:57:07 PM UTC+2, cli...@gmail.com wrote:
> Looking at third-party PDP-11 circuit boards for sale on that auction site.
> Is there a way to tell just from pictures if the board is QBUS or UNIBUS?

Are you looking for something specific?

Re: Looking at a PDP-11 Circuit Board

<a1b87d55-fe0b-46b4-8bd5-9c9e63014943n@googlegroups.com>

copy mid

https://news.novabbs.org/computers/article-flat.php?id=876&group=alt.sys.pdp11#876

copy link Newsgroups: alt.sys.pdp11

X-Received: by 2002:a05:622a:60a:b0:344:5843:aac0 with SMTP id z10-20020a05622a060a00b003445843aac0mr9397285qta.459.1660995784440;
Sat, 20 Aug 2022 04:43:04 -0700 (PDT)
X-Received: by 2002:a05:6808:169e:b0:331:522a:4521 with SMTP id
bb30-20020a056808169e00b00331522a4521mr5381977oib.293.1660995784062; Sat, 20
Aug 2022 04:43:04 -0700 (PDT)
Path: i2pn2.org!i2pn.org!usenet.blueworldhosting.com!feed1.usenet.blueworldhosting.com!peer02.iad!feed-me.highwinds-media.com!news.highwinds-media.com!news-out.google.com!nntp.google.com!postnews.google.com!google-groups.googlegroups.com!not-for-mail
Newsgroups: alt.sys.pdp11
Date: Sat, 20 Aug 2022 04:43:03 -0700 (PDT)
In-Reply-To: <115f5557-c7aa-4ad1-a99d-bef6ac0d5548n@googlegroups.com>
Injection-Info: google-groups.googlegroups.com; posting-host=64.187.128.115; posting-account=Sdqv_QoAAAB8AsTgmmwDwTyzclxdZp-U
NNTP-Posting-Host: 64.187.128.115
References: <339cbff7-7841-45c3-9d3b-3e5455e3b3d9n@googlegroups.com> <115f5557-c7aa-4ad1-a99d-bef6ac0d5548n@googlegroups.com>
User-Agent: G2/1.0
MIME-Version: 1.0
Message-ID: <a1b87d55-fe0b-46b4-8bd5-9c9e63014943n@googlegroups.com>
Subject: Re: Looking at a PDP-11 Circuit Board
From: cliff52@gmail.com (cli...@gmail.com)
Injection-Date: Sat, 20 Aug 2022 11:43:04 +0000
Content-Type: text/plain; charset="UTF-8"
X-Received-Bytes: 1548

by: cli...@gmail.com - Sat, 20 Aug 2022 11:43 UTC

Re: Looking at a PDP-11 Circuit Board

<1210e7ea-c740-4f4e-99a4-b40693784660n@googlegroups.com>

copy mid

https://news.novabbs.org/computers/article-flat.php?id=877&group=alt.sys.pdp11#877

copy link Newsgroups: alt.sys.pdp11

X-Received: by 2002:a05:620a:400e:b0:6ba:fcb6:3641 with SMTP id h14-20020a05620a400e00b006bafcb63641mr7805499qko.375.1660995884325;
Sat, 20 Aug 2022 04:44:44 -0700 (PDT)
X-Received: by 2002:a05:6870:438f:b0:11d:2161:1c5a with SMTP id
r15-20020a056870438f00b0011d21611c5amr220457oah.73.1660995883955; Sat, 20 Aug
2022 04:44:43 -0700 (PDT)
Path: i2pn2.org!i2pn.org!usenet.blueworldhosting.com!feed1.usenet.blueworldhosting.com!peer02.iad!feed-me.highwinds-media.com!news.highwinds-media.com!news-out.google.com!nntp.google.com!postnews.google.com!google-groups.googlegroups.com!not-for-mail
Newsgroups: alt.sys.pdp11
Date: Sat, 20 Aug 2022 04:44:43 -0700 (PDT)
In-Reply-To: <115f5557-c7aa-4ad1-a99d-bef6ac0d5548n@googlegroups.com>
Injection-Info: google-groups.googlegroups.com; posting-host=64.187.128.115; posting-account=Sdqv_QoAAAB8AsTgmmwDwTyzclxdZp-U
NNTP-Posting-Host: 64.187.128.115
References: <339cbff7-7841-45c3-9d3b-3e5455e3b3d9n@googlegroups.com> <115f5557-c7aa-4ad1-a99d-bef6ac0d5548n@googlegroups.com>
User-Agent: G2/1.0
MIME-Version: 1.0
Message-ID: <1210e7ea-c740-4f4e-99a4-b40693784660n@googlegroups.com>
Subject: Re: Looking at a PDP-11 Circuit Board
From: cliff52@gmail.com (cli...@gmail.com)
Injection-Date: Sat, 20 Aug 2022 11:44:44 +0000
Content-Type: text/plain; charset="UTF-8"
X-Received-Bytes: 1774

by: cli...@gmail.com - Sat, 20 Aug 2022 11:44 UTC

On Friday, August 19, 2022 at 6:00:58 AM UTC-4, P.Lj wrote:
> On Thursday, August 18, 2022 at 1:57:07 PM UTC+2, cli...@gmail.com wrote:
> > Looking at third-party PDP-11 circuit boards for sale on that auction site.
> > Is there a way to tell just from pictures if the board is QBUS or UNIBUS?
> Are you looking for something specific?
>
> ^P
Data Systems Design A4430-4, 440 interface board, PDP-11, floppy/flexible disk
Not that interested in the particular board but it's not the first 3rd party board I've seen that didn't state which bus it was applicable to ...

Re: Looking at a PDP-11 Circuit Board

<jmc1bqF7b2kU1@mid.individual.net>

copy mid

https://news.novabbs.org/computers/article-flat.php?id=878&group=alt.sys.pdp11#878

copy link Newsgroups: alt.sys.pdp11

Path: i2pn2.org!i2pn.org!weretis.net!feeder8.news.weretis.net!hirsch.in-berlin.de!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail
From: bill.gunshannon@gmail.com (Bill Gunshannon)
Newsgroups: alt.sys.pdp11
Subject: Re: Looking at a PDP-11 Circuit Board
Date: Sat, 20 Aug 2022 08:11:38 -0400
Lines: 17
Message-ID: <jmc1bqF7b2kU1@mid.individual.net>
References: <339cbff7-7841-45c3-9d3b-3e5455e3b3d9n@googlegroups.com>
<115f5557-c7aa-4ad1-a99d-bef6ac0d5548n@googlegroups.com>
<1210e7ea-c740-4f4e-99a4-b40693784660n@googlegroups.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
X-Trace: individual.net NpLa1LTv5Oc1VlUKwFBWfgQRoRRTo3OaXkU/RZnvX/lyv+u8Vw
Cancel-Lock: sha1:sZsyUb6evg7fljExiI1EcDq6vEw=
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101
Thunderbird/91.9.1
Content-Language: en-US
In-Reply-To: <1210e7ea-c740-4f4e-99a4-b40693784660n@googlegroups.com>

by: Bill Gunshannon - Sat, 20 Aug 2022 12:11 UTC

On 8/20/22 07:44, cli...@gmail.com wrote:
> On Friday, August 19, 2022 at 6:00:58 AM UTC-4, P.Lj wrote:
>> On Thursday, August 18, 2022 at 1:57:07 PM UTC+2, cli...@gmail.com wrote:
>>> Looking at third-party PDP-11 circuit boards for sale on that auction site.
>>> Is there a way to tell just from pictures if the board is QBUS or UNIBUS?
>> Are you looking for something specific?
>>
>> ^P
> Data Systems Design A4430-4, 440 interface board, PDP-11, floppy/flexible disk
> Not that interested in the particular board but it's not the first 3rd party board I've seen that didn't state which bus it was applicable to ...

I have never had a PDP-11 module third-party or otherwise that had
anything on the board that said if it was QBUS or UNIBUS. Always
had to refer to the documentation for that.

bill

Re: Looking at a PDP-11 Circuit Board

<a48a389a-d82b-4393-aba7-acf1e5051685n@googlegroups.com>

copy mid

https://news.novabbs.org/computers/article-flat.php?id=879&group=alt.sys.pdp11#879

copy link Newsgroups: alt.sys.pdp11

X-Received: by 2002:a05:620a:4542:b0:6b3:7c51:6177 with SMTP id u2-20020a05620a454200b006b37c516177mr8191818qkp.306.1661001510461;
Sat, 20 Aug 2022 06:18:30 -0700 (PDT)
X-Received: by 2002:a05:6870:b293:b0:11c:e68f:ed with SMTP id
c19-20020a056870b29300b0011ce68f00edmr2803251oao.19.1661001510000; Sat, 20
Aug 2022 06:18:30 -0700 (PDT)
Path: i2pn2.org!i2pn.org!usenet.blueworldhosting.com!feed1.usenet.blueworldhosting.com!peer02.iad!feed-me.highwinds-media.com!news.highwinds-media.com!news-out.google.com!nntp.google.com!postnews.google.com!google-groups.googlegroups.com!not-for-mail
Newsgroups: alt.sys.pdp11
Date: Sat, 20 Aug 2022 06:18:29 -0700 (PDT)
In-Reply-To: <jmc1bqF7b2kU1@mid.individual.net>
Injection-Info: google-groups.googlegroups.com; posting-host=74.96.251.135; posting-account=7fkRhAoAAABGjMryeMmX0uGWy15z87Dd
NNTP-Posting-Host: 74.96.251.135
References: <339cbff7-7841-45c3-9d3b-3e5455e3b3d9n@googlegroups.com>
<115f5557-c7aa-4ad1-a99d-bef6ac0d5548n@googlegroups.com> <1210e7ea-c740-4f4e-99a4-b40693784660n@googlegroups.com>
<jmc1bqF7b2kU1@mid.individual.net>
User-Agent: G2/1.0
MIME-Version: 1.0
Message-ID: <a48a389a-d82b-4393-aba7-acf1e5051685n@googlegroups.com>
Subject: Re: Looking at a PDP-11 Circuit Board
From: pbirkel@gmail.com (pbi...@gmail.com)
Injection-Date: Sat, 20 Aug 2022 13:18:30 +0000
Content-Type: text/plain; charset="UTF-8"
X-Received-Bytes: 1846

by: pbi...@gmail.com - Sat, 20 Aug 2022 13:18 UTC

On Saturday, August 20, 2022 at 8:11:41 AM UTC-4, Bill Gunshannon wrote:
> I have never had a PDP-11 module third-party or otherwise that had
> anything on the board that said if it was QBUS or UNIBUS. Always
> had to refer to the documentation for that.
>
> bill

Not to mention that there are many, many modules that are neither -- they depend on a specific SU (system unit, "backplane") as part of a CPU, device controller, or other assembly that may-or-may-not have a bus interface at an "edge".

Being hex-height doesn't even rule out Qbus (thank you PDP-8/A :->).

Re: Looking at a PDP-11 Circuit Board

<2c716945-b522-4555-8647-75fe28e0976en@googlegroups.com>

copy mid

https://news.novabbs.org/computers/article-flat.php?id=880&group=alt.sys.pdp11#880

copy link Newsgroups: alt.sys.pdp11

X-Received: by 2002:a05:622a:1986:b0:343:225d:f9e1 with SMTP id u6-20020a05622a198600b00343225df9e1mr9873657qtc.651.1661001764608;
Sat, 20 Aug 2022 06:22:44 -0700 (PDT)
X-Received: by 2002:a4a:ae0e:0:b0:435:33ca:5fb9 with SMTP id
z14-20020a4aae0e000000b0043533ca5fb9mr4046405oom.75.1661001764338; Sat, 20
Aug 2022 06:22:44 -0700 (PDT)
Path: i2pn2.org!i2pn.org!usenet.blueworldhosting.com!feed1.usenet.blueworldhosting.com!peer02.iad!feed-me.highwinds-media.com!news.highwinds-media.com!news-out.google.com!nntp.google.com!postnews.google.com!google-groups.googlegroups.com!not-for-mail
Newsgroups: alt.sys.pdp11
Date: Sat, 20 Aug 2022 06:22:44 -0700 (PDT)
In-Reply-To: <a48a389a-d82b-4393-aba7-acf1e5051685n@googlegroups.com>
Injection-Info: google-groups.googlegroups.com; posting-host=74.96.251.135; posting-account=7fkRhAoAAABGjMryeMmX0uGWy15z87Dd
NNTP-Posting-Host: 74.96.251.135
References: <339cbff7-7841-45c3-9d3b-3e5455e3b3d9n@googlegroups.com>
<115f5557-c7aa-4ad1-a99d-bef6ac0d5548n@googlegroups.com> <1210e7ea-c740-4f4e-99a4-b40693784660n@googlegroups.com>
<jmc1bqF7b2kU1@mid.individual.net> <a48a389a-d82b-4393-aba7-acf1e5051685n@googlegroups.com>
User-Agent: G2/1.0
MIME-Version: 1.0
Message-ID: <2c716945-b522-4555-8647-75fe28e0976en@googlegroups.com>
Subject: Re: Looking at a PDP-11 Circuit Board
From: pbirkel@gmail.com (pbi...@gmail.com)
Injection-Date: Sat, 20 Aug 2022 13:22:44 +0000
Content-Type: text/plain; charset="UTF-8"
X-Received-Bytes: 1509

by: pbi...@gmail.com - Sat, 20 Aug 2022 13:22 UTC

All extremists should be taken out and shot.

computers / alt.sys.pdp11 / Looking at a PDP-11 Circuit Board

Subject	Author
Looking at a PDP-11 Circuit Board	cli...@gmail.com
Looking at a PDP-11 Circuit Board	Johnny Billquist
Looking at a PDP-11 Circuit Board	P.Lj
Looking at a PDP-11 Circuit Board	cli...@gmail.com
Looking at a PDP-11 Circuit Board	cli...@gmail.com
Looking at a PDP-11 Circuit Board	Bill Gunshannon
Looking at a PDP-11 Circuit Board	pbi...@gmail.com
Looking at a PDP-11 Circuit Board	pbi...@gmail.com