Description
Keithley Metrabyte DAS-50/4 ADC Interface Board PC7012 14108 Rev B PC7022
The Keithley Metrabyte DAS-50/4 is an analog-to-digital converter (ADC) interface board designed for PC-based data acquisition in laboratory and instrumentation applications. This listing includes two boards from the DAS-50 system: the main interface board (PC7012, 14108 Rev B) and the companion DAS-50 memory board (PC7022, 14104 Rev 2). Both boards were pulled together from a Keithley 7500-XC-001 Metrabyte computer.
Specifications & What's Included
- Manufacturer: Keithley Instruments / Metrabyte
- Model: DAS-50/4, Rev 9040
- Main Board: PC7012, part number 14108, Rev B
- Memory Board: PC7022, part number 14104, Rev 2 (DAS-50 Memory Board)
- Bus Interface: ISA (full-length card)
- Connector: DB-37 style external I/O connector on bracket
- Edge Connector: Gold-contact ISA bus edge connector
- PCB marking: CIRCUIT SIDE MADE IN USA; CPC 1, 94V0, 2190
- Memory ICs visible on memory board: Texas Instruments TMS4256-15NL and TMS4256-10NL
- Logic components visible: 74HCT-series logic ICs, Maxconn connector assembly, red DIP switch bank
- Pulled from: Keithley 7500-XC-001 Metrabyte Computer
- Sold as a set: both PC7012 and PC7022 boards included
Applications
The Keithley Metrabyte DAS-50 series was a line of high-speed analog data acquisition boards designed for ISA-bus PCs, widely used in laboratory automation, scientific data logging, process monitoring, and test and measurement systems during the late 1980s and early 1990s. Metrabyte Corporation — later acquired by Keithley Instruments — produced some of the most widely used PC-based data acquisition hardware of that era, and the DAS-50 family was a flagship product for high-throughput ADC applications. These boards were commonly found in research labs, industrial test benches, and OEM instrumentation systems such as the Keithley 7500 series Metrabyte computer. Today they remain relevant to engineers and researchers maintaining legacy data acquisition setups, vintage computing enthusiasts, and system integrators working with period-correct ISA-bus hardware.
This Keithley Metrabyte DAS-50/4 analog-to-digital interface board was pulled from a Keithley 7500-XC-001 Metrabyte computer. We were unable to test this card at our facility, so it is being sold as-is for parts or integration into a compatible system. The board shows normal age-related wear consistent with industrial use. Both the main interface board (PC7012, 14108 Rev B) and the memory board (PC7022, 14104 Rev 2) are present. No cracks, broken traces, or obvious physical damage are visible in our photos. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
Keithley |
Model: |
DAS-50/4 |
MPN: |
PC7012 |
Secondary Model: |
PC7022 |
Type: |
Analog-to-Digital Interface Board |
SKU: |
43011 |
Condition: |
As-Is / For Parts or Not Working |
Seller Notes: |
Includes main board PC7012 (14108 Rev B) and memory board PC7022 (14104 Rev 2) |
Country/Region of Manufacture: |
United States |
Form Factor: |
ISA Card / Full-Length |
Board Revision: |
Rev 9040 (DAS-50/4); Rev B (PC7012 14108); Rev 2 (PC7022 14104) |
Compatible With: |
Keithley 7500-XC-001 Metrabyte Computer |
Bus Interface: |
ISA |
Function: |
Analog-to-Digital Conversion (ADC) / Data Acquisition |
Connector Type: |
DB-37 (visible on card bracket) |
Application: |
Data Acquisition, Laboratory Instrumentation |
PCB Marking: |
CIRCUIT SIDE MADE IN USA; CPC 1, 94V0, 2190 |
Condition Notes: |
Keithley Metrabyte DAS-50/4 ADC interface board pulled from a Keithley 7500-XC-001. We could not test this card — sold as-is for parts. Includes PC7012 (14108 Rev B) and PC7022 (14104 Rev 2) boards. No visible damage. |
