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Call:1-888-551-3082 International: 1-919-443-0207 sales@servosupplier.com
Call:1-888-551-3082 International: 1-919-443-0207 sales@servosupplier.com

E0227-702-004

by Okuma
Original price $0
Original price $1,592.99 - Original price $1,592.99
Original price
Current price $1,592.99
$1,592.99 - $1,592.99
Current price $1,592.99
In Stock, Ships 1 - 3 Days
 More payment options
The E0227-702-004 Bubble Memory Card is a vintage 2Mbit product manufactured by Okuma. It uses a non-volatile computer memory system that relies on tiny magnetized areas, known as "bubbles" or domains, in a thin magnetic film. Each bubble stores one bit of data, making it similar to delay line memory systems. Developed as part of the Opus 5000 range in 1967, this card weighs around 1lb and measures 11 by 6 by 1 inch. While not widely used in modern systems, it allows data storage that persists even when the computer is off. The card features orthogonal coils situated beneath the magnetic plate surface, connected to a user system that includes diode arrays, coil drivers, a sense amplifier, and a controller. Notably, these components are also linked to the bubble chip which incorporates chevron propagation elements, a Ni-Fe guide, a bubble domain, and a non-magnetic substrate.
30 Day Warranty
Technical Specifications
  • Manufacturer: Okuma
  • Product Type: Bubble Memory Card
  • Part Number: E0227-702-004
  • Memory Capacity: 2Mbit
  • Weight: 1lb
  • Dimensions: 11 in x 6 in x 1 in
  • Non-volatile: Yes
  • Coil Type: Orthogonal
  • Inclusion: Diode arrays, coil drivers, a sense amplifier, a function timing generator, a function driver and a controller
  • Bubble Chip Components: Chevron propagation elements, a Ni-Fe guide, a bubble domain, an epitaxial magnetic film, and a CGG non-magnetic substrate

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Phone Number: 1-888-551-3082

International: 1-919-443-0207

Fax: 1-919-867-6204

Servo Supplier is not an authorized distributor. We sell new surplus and refurbished products, all warranties are with Servo Supplier and not the manufacturer.