Improvements in or relating to circuit arrangements including lowfrequency relaxation oscillators

711,535. Automatic exchange equipment. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Oct. 10, 1951 [Oct. 12, 1950], No. 24900/50. Class 40 (4) [Also in Group XL (c)] Fig. 5 shows a tone generator for use in an automatic telephone exchange. Valve VH oscillates at a frequency of 400 cycles per second b...

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Bibliographische Detailangaben

Hauptverfasser:	DAVISON ALAN, ALLEN LESLIE JOHN
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY ELECTRICITY PULSE TECHNIQUE
Online-Zugang:	Volltext bestellen
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