Re: FS : IBM Magnetic cards for IBM selectric "compocarte" (?)

[Al Kossow via cctalk]

On 1/3/20 1:39 PM, Mike Stein wrote:

> I've got a couple of the drives for those cards somewhere in case someone 
> needs/wants one; rollers to feed the card in and out and a solenoid ratchet 
> to move the head across track-to-track. Wonder if you could build an 
> 80-column card reader out of one... ;-)
>

Is the on-card format documented anywhere?