SKU: 11.1 (i-PCGE3)

USSR Rare ROM Magnetic Ferrite Core TROS Memory Plate 1970s



Condition: good condition. Please see provided pictures at eBay picture gallery.

Ferrite Core Memory Plate made in the USSR in 1970s
The TROS (transformer read only storage) technology is implemented in the ROM board.

The Plate outside dimension (approximate): 2.5" x 2.5" (6.5 cm x 6.5 cm).
Weight (approximate): 0.02 oz (12 grams)
Outer core diameter (approx.): 0.07" (2 mm)

The ferrite cores are visible clear on the damaged plate (not for sell)
Condition: good used condition. Please see pictures attached


The plate is one of 20 plates forming a ferrite core memory ROM block. Each plate covered with
the mica film contains a matrix of 16 x 16 rings and all plates are stitched through. Ferrite stack
of 18 plates is shown on the last pictures.