Boston Technology PC73A Thermocouple Card 1992 - Vintage ISA Data Acquisition Module

Condition: Secondhand

Up for auction is a rare piece of early 90s computing history: an authentic Boston Technology PC73A thermocouple card from 1992. This vintage legacy 16-bit ISA bus data acquisition board was originally used for industrial or laboratory temperature monitoring applications. Please note that this card is untested due to the absence of compatible legacy hardware or ISA motherboard setups. It is sold strictly as-is, making it an ideal find for vintage hardware collectors, industrial tech restorers, or component salvagers.

Enhance your vintage computing collection or industrial equipment restoration with this rare and authentic thermocouple measurement card. The PCB is in excellent cosmetic condition, with intact traces, clean gold contacts, and no signs of damage or leaking capacitors. The card features essential components from the early 90s, including:

• Brand/Model: Boston Technology PC73A Thermocouple Card (1992)
• Interface: Legacy 16-bit ISA slot
• Key Components:
  • Maxim DG507ACJ multiplexer
  • AD774B high-speed A/D converter
  • GAL20V8A PLD
• Physical condition: Visually in excellent condition with no physical damage
• Onboard controls: Card address dip switch bank and clock divider configuration switch

This vintage thermocouple card includes:

• 1 x Boston Technology PC73A ISA card (untested)
• 1 x heavy-duty external interface cable

Whether you're a collector, restorer, or industrial tech enthusiast, this rare component offers a glimpse into early 90s temperature measurement technology. Its legacy interface and high-quality components make it a valuable addition to any vintage hardware setup or restoration project.