Function of the card:
CTRL SS Timing Card #4
Ctrl-ss timing card #6
Single Shot Timing Card 6
Ctrl-ss timing card number 6
Complemented Transistor Resistor Logic (CTRL) is IBM's term for a form of resistor-transistor logic.
Part number: 371638
PCB number: 492809
Used in: IBM 1414 I/O Synchronizer, IBM 1410, 7030
Cap code: None (details)
Symbol: SS
SS: Single Shot. Provides a monostable output which can be pulsed into its quasi-stable state for a predetermined duration. with each input triggering pulse or triggering voltage change. Once triggered, the output pulse duration becomes independent of input time duration or amplitude.
Image courtesy of Arthur Dauzat
IBM Standard Modular System, Component Circuits, p223
1410_SMS_VOL_2.pdf, p102
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.