Transistor circuits for a ferrite store
作者:
G.C.Padwick,
A.L.Cain,
期刊:
Proceedings of the IEE - Part B: Electronic and Communication Engineering
(IET Available online 1959)
卷期:
Volume 106,
issue 16S
页码: 675-684
年代: 1959
DOI:10.1049/pi-b-2.1959.0129
出版商: IEE
数据来源: IET
摘要:
The paper describes the various circuits associated with a coincident-current ferrite store, all of which use transistors and no valves. A switched-current pulse generator supplies the drive pulses to the store and makes use of the high-frequency power transistor type OC23. Selection is done economically by using gating matrices controlled by transistors. Junction diodes type OA10, or gold-bonded point-contact diodes type OA5, pass the current pulses in the matrices with a very small voltage drop. Two methods of gate selection and drive are described, one of which makes use of square-hysteresis-loop cores to select and drive the gating transistors, and the other uses a diode matrix to provide potential levels at the bases of the gating transistors. The output of the store is amplified by high-frequency transistors, strobed, and standardized. Provision is made for writing new information, or for rewriting information immediately it has been read, by a diode logical network controlling the ‘inhibit’ pulse generator.
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