Originally posted by Marshmallowman
Remember the matrices of remanent ferrite beads with three wires through them, X and Y to identify the bit and a diagonal one for the signal? I used them in a digital system c. 1955. They cost a fortune, because the wires could be threaded only by hand. The one I used was 5 kbits on a 50 x 100 matrix. If I remember correctly, it cost my company about 30 times my monthly salary as a graduate engineer
It also required a massive array of 12AT7 double triode valves (vacuum tubes), consuming kW, to drive the bugger. Nothing new under the sun!


Comment