Vintage memory or logic expansion PCB featuring 32 integrated circuit chips arranged in two rows.
The board appears to be from industrial equipment, computing hardware, telecommunications systems, or other legacy electronics.

✔ 32 IC chips (DIP packages)
✔ Through-hole connector edge with 30+ pins
✔ Markings: 46401250 REV X and DX8MUX
✔ Suitable for electronics restoration, testing, reuse, or parts harvesting
✔ Also valuable to collectors of vintage computing hardware

Vintage expansion board with DIP chips

SPECIFICATIONS

Type: Memory / Logic Expansion Module
Technology: DIP ICs, Through-Hole
Chip Count: 32 total
Board Markings:

• 46401250 REV X

• DX8MUX

• Positional numbering 1–30
  Condition: Used, untested

This Vintage Metal Core Memory Board is a rare and highly collectible example of early ferrite RAM technology. Unlike standard boards, this unique module features a fully metal construction, making it heavier, more durable, and significantly rarer than typical PCB-based memory boards. Such core memory modules were crucial in the development of early computer systems, storing data through magnetic cores before the rise of semiconductor RAM.

Collectors and computer history enthusiasts prize the Vintage Metal Core Memory Board for its authenticity, engineering quality, and scarcity. Its intricate etched circuits and solid build reflect the technological craftsmanship of mid-20th-century computing hardware.

Owning this Vintage Metal Core Memory Board means preserving an important part of computing history — a true relic from the era when ferrite RAM shaped the foundation of digital memory technology.

SPECIFICATIONS

• Type: Ferrite Core Memory RAM Board

• Construction: Fully metal, heavy-duty design

• Era: Mid to late 20th century

• Technology: Magnetic core RAM module

• Markings: “5ЛБ 577 964” and etched circuit references

• Condition: Used, collectible vintage hardware

• Ideal For: Collectors, vintage computer enthusiasts, historical display

• Check out our vintage  Ferroelectric RAM collection here!

This Ampex 3241894-10 Vintage Core Memory Board is a rare collectible piece of early computer technology. Manufactured by Ampex Computer Products Division, this core memory module features durable construction and precision engineering, representing the reliability of computing components from the late 20th century.

The Ampex 3241894-10 Core Memory Board was designed for use in specialized computing systems and showcases the craftsmanship of magnetic core memory technology, which played a key role in the evolution of computers. Collectors, engineers, and vintage electronics enthusiasts value this Ampex 3241894-10 Vintage Core Memory Board for its authenticity and historical significance.

With its original Ampex warranty seals and labeled specifications, this board is ideal for display, preservation, or as part of a rare vintage computer hardware collection. A true collectible that highlights the transition from early computing to modern digital systems.

SPECIFICATIONS

• Manufacturer: Ampex Computer Products Division

• Model Number: 3241894-10

• Serial Number: 1A-3846

• Assembly Number: 3256469-01 F

• Technology: Magnetic Core Memory Board

• Words: 8K, 16 bits per word

• Date Code: 7413 (1970s era)

• Condition: Used, collectible item

• Ideal For: Collectors, vintage computing enthusiasts, historical display

• Check out our vintage  Ferroelectric RAM collection here!

The DEC DIGITAL MEMORY CORE BOARD M8222A VINTAGE is a rare ferrite core memory module produced by Digital Equipment Corporation in the 1970s. This board was used in DEC minicomputers and represents one of the earliest forms of non-volatile memory.

Specifications:

• Brand: Digital Equipment Corporation (DEC)

• Model: M8222A

• Type: Ferrite Core Memory Board

• Technology: Magnetic core memory (non-volatile)

• Era: 1970s

• Condition: Vintage, as pictured

• Check out our vintage  Ferroelectric RAM collection here!

These ferrite RAM modules were essential in early digital systems before semiconductor memory became standard. Collectors of rare computing hardware will appreciate this piece both for its historical significance and its intricate handcrafted construction.

Specifications:

• Type: Ferrite Core Memory (RAM)

• Application: Military computing systems

• Package: Vintage PCB with visible ferrite cores, capacitors, and resistors

• Connectors: Gold-plated edge contacts

• Condition: Vintage, as pictured

• Quantity: 1 piece

• Check out our vintage  Ferroelectric RAM collection here!

It includes clearly visible hand-wired ferrite cores, resistors, and ceramic components, showcasing the craftsmanship of early computer hardware. These memory boards are highly collectible due to their historical significance in the evolution of digital storage.

A true piece of computing history, ideal for collectors of vintage electronics, museums, or enthusiasts of early computer technology.

Specifications:

• Type: Ferrite Core Memory Board

• Application: Calculator (vintage model)

• Components: Ferrite cores, ceramic capacitors, resistors, wiring

• Condition: Vintage, as pictured

• Quantity: 1 piece

• Check out our vintage  Ferroelectric RAM collection here!

The module was manufactured by Unitra Torgal and features a large ferrite core memory grid visible on the back. Such modules were widely used in computing machines of the 1960s and 1970s, and some were adapted for military and defense applications.

This example, with clear markings “U30T 0310/M001” and “727”, is a rare and highly collectible artifact, perfect for vintage electronics enthusiasts and serious collectors of early computer technology.

Specifications:

• • Brand: Unitra Torgal

  • Model/Number: U30T 0310/M001 (727)

  • Type: Ferrite Core Memory Module

  • Package: Large ceramic/PCB with visible ferrite grid

  • Origin: Poland

  • Application: Early computing and possible military use

  • Quantity: 1 piece

  • Condition: Vintage, as pictured

• Check out our vintage  Ferroelectric RAM collection here!

Although not in perfect cosmetic condition, this piece remains a rare historical artifact from early computer memory technology. Collectors and enthusiasts of vintage computing or military electronics will appreciate its uniqueness and historical value.

Specifications:

• Type: Ferrite Core Memory (RAM)

• Origin: Military/Defense equipment

• Condition: Vintage, used, not in perfect condition (see pictures)

• Era: 1960s–1970s

• Quantity: 1 piece

• Check out our vintage  Ferroelectric RAM collection here!

This listing features 1 PCS VINTAGE FERRITE CORE MEMORY BOARD FROM OLD CALCULATOR RARE.
The board contains a ferrite core RAM array, which was used in early calculators before the transition to semiconductor memory. These modules are rare survivors from the early era of computing and are sought after by collectors of vintage technology. The board includes discrete components such as capacitors, resistors, and transistors, along with the visible ferrite memory grid.

Specifications:

• Type: Ferrite Core RAM Memory Board

• Application: Used in early calculators

• Visible Elements: Ferrite cores, resistors, capacitors, transistors

• Technology: Early non-volatile RAM based on magnetic cores

• Quantity: 1 piece

• Condition: Vintage, as pictured

Check out our vintage  Ferroelectric RAM collection here!