Function of the card:
CTDL-Two Way “And” PNP One Load
Two-Way-AND (1 Load)
Ctdl two way and pnp one load
Part number: 371262
Field replacement part number: 370915
Customer Eng reference number: 729821
Cap code: VV (details)
Image courtesy of Randall Neff
1401 Pocket Reference Manual
IBM Standard Modular System, Component Circuits, p42.
1_2 SMS Cards, p29,83.
The information on these pages comes from a variety of sources, especially old IBM documents on bitsavers.org, as well as information from the IBM 1401 restoration team, especially Tim Coslet's SMS data and Jim Hunt's data. Much of this information was obtained through OCR, so don't expect complete accuracy. These pages are not associated with IBM in any way.