LC8-P (M8365) PDP8 printer interface schematics

Charles Dickman chd at
Wed Jan 4 14:39:30 CST 2017

On Wed, Jan 4, 2017 at 7:08 AM, Christian Corti
<cc at> wrote:
> On Tue, 3 Jan 2017, Ethan Dicks wrote:
>> On Tue, Jan 3, 2017 at 8:04 PM, Charles Dickman <chd at> wrote:
>>> I am looking for schematics or any documentation for the LA180
>>> interface for the PDP8/e. A scan would be great. I want to see if I
>>> can use it to interface to a Centronics interface printer.
>> I don't have the schematics (I do have an LC8-P somewhere), but I
>> remember back in the day, people wanted to go the other way - feed a
>> PC printer w/Centronics interface from a DEC interface.
> It's not the other way, it's the same way ;-) (attatching a Centronics/PC
> printer to a DEC interface)

Yes, I want to connected an OKIDATA Microline82A to the PDP8/e.

Looking at the LA180 manual's description of the LC8-P interface, it
is pretty close to Centronics. I expect it is more than just a cable,
though, because there is also an OMNIBUS Centronics printer interface
board (LS8-E). That schematic is on bitsavers.

I also have an LE8-E (M841), but that only provides 7 data bits to the printer.


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