Re: Unknown boards
This reminds me the 5 boards that were in the back of my Uniservo 10/14 and which were the terminators (to put on the last tape drive connected to the main controller). Maybe these boards have a similar function? On 16/06/2017 19:02, william degnan via cctech wrote: I checked and they are no GE 4000 system boards. On Fri, Jun 16, 2017 at 12:57 PM, Jon Elson via cctech < cctech@classiccmp.org> wrote: On 06/16/2017 09:31 AM, David Gesswein via cctech wrote: Can anyone identify these boards? Person I got them from can't remember anything about them. http://www.pdp8online.com/ftp/misc/unknown_boards/ Date codes of 1964. Size 4.5"x3.25". Looks like used card edge for keying but has separate 23 pin connector for electrical connection. No useful markings I can see. Has card ## on the back. Search by picture didn't find anything. Thanks They remind me of RCA bizmac boards, which are likely to be related to GE, as that computer division changed hands a number of times. The connectors are Elco Varilok. Jon
Re: Unknown boards
I like the Elgin clock module. I didn't know they made electronic time pieces. I'd guess the board is a clock generator. Dwight From: cctech <cctech-boun...@classiccmp.org> on behalf of william degnan via cctech <cctech@classiccmp.org> Sent: Friday, June 16, 2017 10:02:18 AM To: Jon Elson; General Discussion: On-Topic Posts Subject: Re: Unknown boards I checked and they are no GE 4000 system boards. On Fri, Jun 16, 2017 at 12:57 PM, Jon Elson via cctech < cctech@classiccmp.org> wrote: > On 06/16/2017 09:31 AM, David Gesswein via cctech wrote: > >> Can anyone identify these boards? Person I got them from can't >> remember >> anything about them. >> http://www.pdp8online.com/ftp/misc/unknown_boards/ >> >> Date codes of 1964. Size 4.5"x3.25". Looks like used card edge for >> keying but has separate 23 pin connector for electrical connection. >> No useful markings I can see. Has card ## on the back. >> >> Search by picture didn't find anything. >> >> Thanks >> >> They remind me of RCA bizmac boards, which are likely to be related to > GE, as that computer division changed hands a number of times. > > The connectors are Elco Varilok. > > Jon >
Re: Unknown boards
On 06/16/2017 09:31 AM, David Gesswein via cctech wrote: Can anyone identify these boards? Person I got them from can't remember anything about them. http://www.pdp8online.com/ftp/misc/unknown_boards/ Date codes of 1964. Size 4.5"x3.25". Looks like used card edge for keying but has separate 23 pin connector for electrical connection. No useful markings I can see. Has card ## on the back. Search by picture didn't find anything. Thanks They remind me of RCA bizmac boards, which are likely to be related to GE, as that computer division changed hands a number of times. The connectors are Elco Varilok. Jon
Unknown boards
Can anyone identify these boards? Person I got them from can't remember anything about them. http://www.pdp8online.com/ftp/misc/unknown_boards/ Date codes of 1964. Size 4.5"x3.25". Looks like used card edge for keying but has separate 23 pin connector for electrical connection. No useful markings I can see. Has card ## on the back. Search by picture didn't find anything. Thanks
