Artifact Details

Title

SDS SX33 digital to analog module

Catalog Number

102733762

Type

Physical object

Manufacturer

Scientific Data Systems (SDS)

Identifying Numbers

Model number SX33 Printed in black ink at the top of the extraction handle.
Other number 100861C Stamped in black ink on the circuit side of the module, serial number 2907705.
Other number 100861D Stamped in black ink on the circuit side of the module, serial number 9596709.
Serial number 2907705 Printed vertically in black ink on the extraction handle of a module.
Serial number 9596709 Printed vertically in black ink on the extraction handle of a module.

Dimensions

overall: 6 in x 7/8 in x 5 5/8 in

Description

These modules are PCBs intended to be inserted in a card cage. There is an extraction handle attached to the front of the card, on which a paper label containing the model number, serial number, and other information is printed.

Opposite the handle there are 47 bifurcated gold-plated contacts arranged in two rows. Mounted on the component side of the PCB are the active and passive components consisting of resistors, capacitors, and jumpers. There are eight small rotary trim potentiometers mounted to the board in four pairs on top of each other. Each module has a large sub-module that covers most of the surface of the PCB mounted close to the card edge contacts. One of the modules appears to have an additional shield added that extends the extraction handle the entire height of the card; the other module doesn't appear to have this feature. These modules are twice the width of the standard module.

All the cards have various quality control stamps on one or both sides of the PCB.

Category

Component/module

Credit

Gift of History San Jose

Lot Number

X3872.2007