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

Function of the card:
SDTRL-Generator, Sample Pulse

One Shot

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

Part number:370370

PCB number:492911

Used in:IBM 1620

Symbol:DSP

DSP: Driver, Sample Pulse. Same as D, with the additional function of supplying a specific length pulse output when the input consists of a gate and a sample pulse spike. The input may also be the output of a current switching circuit without a gate.

Transistor type:025/033 039/101/106

References:
IBM 1620 Instructional System Diagrams, p495.

Pinout:

A PDR
B CAP
C I1
D O1
E PDD
F
G
H
J GND
K
L
M -12V
N +12VM
P
Q
R

This page created by Ken Shirriff, 2015.

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. Images courtesy of Randall Neff. Much of this information was obtained through OCR, so don't expect complete accuracy. These pages are not associated with IBM in any way.

Creation time: Tue Mar 03 23:40:34 2015.