IBM type 526 printing summary punch | 102733420

Description

Object is a basic 026 keypunch with the usual card feed mechanism, printing head, control drum, and keyboard with four switches. In addition it has a plugboard that mounts in the lower left side. On the rear right corner is a toggle switch (clearly a local modification) with handwritten labels of "Routine Counting System" for the up position and "PDP-8 + Card Punch" for the down position.

Found inside the left side of the machine were a wiring diagram, a Field Engineering Maintenance manual, and a Type 526 Parts Catalog (sent to archives).

Manufacturer

International Business Machines (IBM)

Place Manufactured

Armonk, N.Y.

Identifying Numbers

Model number	526	Label on card feed and on foil label inside.
Other number	12640	Written in black marker on card feed mechanism.
Other number	3781317	LLNL barcode on card feed.
Other number	S2 02-1	Foil label on right side panel.
Serial number	12640	Foil label on right side panel.