This page describes the IBM SMS card "DAT", and is part of the SMS card database.

Function of the card:
SDTRL-Inverting,Heavy Power Driver
SDTRL-inverting,heavy power driver

Dual Power Driver

Saturated Drift Transistor Resistor Logic (SDTRL) is a form of resistor-transistor logic using faster drift-field transistors.

Part number: 370172

Used in: 1622, IBM 1620

Cap code: None (details)

Symbol: DP

DP: Driver, Power. A power driver used to drive Into multiple bases.

Pinout:

A
B I1
C
D
E
F I2
G O1
H O2
J GND
K
L
M -12V
N +12VM
P
Q
R
References: IBM 1620 FE Catalog
IBM 1620 Instructional System Diagrams, p478
Coslet data

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.