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

Function of the card:
SDTRL-Oscillator, 360 KC S Line Gated
SDTRL oscillator 360 kc s line gated

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

Part number:370297

Field replacement part number:370297

Customer Eng reference number:729936

PCB number:493327

Used in:IBM 1401,IBM 1410

References:
2_2 SMS Cards, p118.
1410_SMS_VOL_1.pdf/1410_SMS_VOL_2.pdf, p1082.
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.